Changing Majors is a South Korean variety web series featuring various universities, colleges and schools, and the courses offered inside. The series starred Lee Chang-sub of BtoB for the first five seasons, and Kai of Exo beginning season 6.
Episode 1. Department of Police Administration, Dongguk University
2022-11-11 · 19 min
No synopsis
Episode 2. Department of Thai at Hankuk University of Foreign Studies
2022-11-18 · 18 min
No synopsis
Episode 3. Department of Broadcasting and Entertainment, Induk University
2022-11-25 · 21 min
No synopsis
Episode 4. Department of Veterinary Medicine, Konkuk University
2022-12-02 · 18 min
No synopsis
Episode 5. Department of Psychology, Catholic University
2022-12-09 · 18 min
No synopsis
Episode 6. Department of Physical Therapy, Samyuk University
2022-12-16 · 20 min
No synopsis
Episode 7. Department of Air Service, Bucheon University
2022-12-23 · 18 min
No synopsis
Episode 8. Department of E-sports, Osan University
2022-12-30 · 20 min
No synopsis
Episode 9. Department of Physical Education, YongIn University
2023-01-06 · 23 min
No synopsis
Episode 10. Department of Practical Music and MT Part 1
2023-01-13 · 20 min
No synopsis
Episode 11. Department of Practical Music and MT Part 2
2023-01-20 · 25 min
No synopsis
Episode 12. Seoul National University's Broadcasting Club
2023-02-16 · 20 min
Changsub is joined by Key (from SHINee) as he reviews Seoul National University's Broadcasting Club during winter vacation.
Episode 13. Korea University's Cheerleading Club
2023-02-23 · 19 min
No synopsis
Episode 14. Dankook University's Stock Club
2023-03-02 · 20 min
No synopsis
Episode 15. Chung Ang University's Theater Club
2023-03-09 · 20 min
No synopsis
Episode 16. Department of Business Administration, Yonsei University
2023-03-23 · 19 min
It's the start of the first semester and Jeongwaja returns to change majors again! Lee Changsub goes to the Department of Business Administration, the largest number of departments in Korea. From marketing classes, which are the…
Episode 17. Department of Mechanical Engineering, Busan University
2023-03-30 · 23 min
To go to the same school as Yim Siwan, Jeongwaja commutes for 10 hours! Lee Changsub learns Mechanical Engineering with a special lecture on real Busan dialect from the local and fundamentals of machine that is easily(?) learned with…
Episode 18. Department of Physics, Kyung Hee University
2023-04-06 · 21 min
Lee Changsub takes physics class, which is known to be a class that only real fans of science take!
Starting with Interstellar's quantum mechanics
and even an experiment that can win the Nobel Prize(?), Ant-Man, Doctor Strange...is it…
Episode 19. Department of Beauty Art, Seokyeong Unviersity
2023-04-13 · 21 min
From shampooing to drying and cutting,
Lee Changsub goes to the Division of Beauty Art and experiences a full course at a hair salon by majoring in Hair Design!
Episode 20. Department of Architecture, Soongsil University
2023-04-24 · 25 min
Lee Changsub takes a class in the Department of Architecture that says staying up all night is basic! Taking a class at a construction site blowing cement powder and a design class where the professor buys chicken, Jeongwaja finally finds…
Episode 21. Department of Media Communication, Sungkyunkwan University
2023-04-27 · 27 min
From storytelling to nonverbal communication method, Lee Changsub learns everything by visiting Media Communication, a popular liberal arts department! With a surprise appearance of colleagues at work, Jeongwaja goes back to his main job?
Episode 22. Department of Companion Animal Health, Yeonsung University
2023-05-04 · 21 min
Lee Changsub goes to the Department of Companion Animal Health where he took classes with Shiba (not swearing)!
From making pet food that even people covet to pet training tips that surpass Kang Hyung-wook, how will Jeongwaja (aka…
Episode 23. Department of Nursing, Ajou University
2023-05-11 · 24 min
From the mystery of the birth of life to urgent real emergency room case practice, Lee Changsub learns in Ajou University's Department of Nursing! How does one respond to an emergency room patient? Jeongwaja shows us how!
Episode 24. Department of Fashion Design, Hansung University
2023-05-25 · 21 min
Jeongwaja goes to Hansung University's Department of Fashion Design to become a fashion leader of the new generation!
Lee Changsub tries to make clothes himself and even does the fitting! Let's check his fashion sense!
Episode 25. Department of Hotel Culinary Arts, Korea Hotel & Tourism Technical College
2023-06-01 · 23 min
Lee Changsub goes to the Department of Hotel Culinary Arts and tastes heavenly food!
A Jeongwaja who receives a special secret from Professor Lee Yeon-bok and Professor Jung Ho-young is reborn as a Cooking Master Boy, in one day?
Episode 26. Military Academy #3
2023-06-08 · 27 min
"Jeongwaja has been ordered to be re-enlisted..!🪖”
Jeongwaja ended up re-enlisting in the army to carry out the promise he made for reaching the 🔥500k subscribers🔥 milestone
Episode 27. Hanyang University Division of Materials Science and Engineering
2023-06-15 · 25 min
No synopsis
Episode 28. Department of Urban Administration, University of Seoul
2023-06-22 · 21 min
No synopsis
Episode 29. Division of Navigation Science, Korea Maritime and Ocean University
2023-06-29 · 25 min
No synopsis
Episode 30. Department of Early Childhood Education, Kyungin Women's University
2023-07-06 · 24 min
No synopsis
Episode 31. University Work Program for Rural Areas, Kookmin University
2023-07-13 · 22 min
No synopsis
Episode 32. The reason they give up math? (feat. People who give up math) [Sogang University Math Department]
2023-09-21 · 30 min
No synopsis
Episode 33. South Korea's Top Fine Arts College [Hongik University Department of Painting]
2023-09-25 · 25 min
No synopsis
Episode 34. A degree worth a shot [Kyunghee University Korean Medicine Department]
2023-09-28 · 24 min
No synopsis
Episode 35. Never lose an argument again [Philosophy, Korea University]
2023-10-05 · 26 min
No synopsis
Episode 36. Major packed with horses [Univ of Agriculture&Fisheries Horse Industry Major]
2023-10-19 · 25 min
No synopsis
Episode 37. A Must-Visit Course Before the Air Force [Hanseo University Helicopter Operations]
2023-10-26 · 29 min
No synopsis
Episode 38. Re-enrollment, Let's go to Howon University Department of Practical Music
Episode 75. How Much Do Music Students' Instruments Cost? [Chugye University for the Arts]
2024-12-05 · 36 min
No synopsis
Episode 76. The Truth About Jeju Uni's Tangerine Packaging Department [Tourism Management]
2024-12-12 · 31 min
No synopsis
Episode 77. Why take medicine 30 minutes after a meal? [AJOU UNIVERSITY College of Pharmacy]
2024-12-19 · 29 min
No synopsis
Episode 78. Came to build a ship [MNU Naval Architecture And Ocean Engineering]
2024-12-26 · 29 min
No synopsis
Episode 79. How to get 1 million won a year [Chung-Ang University Social Welfare Department]
2025-01-05 · 26 min
No synopsis
Episode 80. Dentist Tips from a Dental Student [SNU Graduate School of Dentistry]
2025-01-08 · 26 min
No synopsis
Episode 81. Episode 81
No synopsis
Episode 82. Episode 82
No synopsis
Episode 83. Episode 83
No synopsis
Season 2
18 episodes
Episode 12. Seoul National University's Broadcasting Club
2023-02-16 · 20 min
Changsub is joined by Key (from SHINee) as he reviews Seoul National University's Broadcasting Club during winter vacation.
Episode 13. Korea University's Cheerleading Club
2023-02-23
No synopsis
Episode 14. Dankook University's Stock Club
2023-03-02
No synopsis
Episode 15. Chung Ang University's Theater Club
2023-03-09
No synopsis
Episode 16. Department of Business Administration, Yonsei University
2023-03-23
No synopsis
Episode 17. Department of Mechanical Engineering, Busan University
2023-03-30
No synopsis
Episode 18. Department of Physics, Kyung Hee University
2023-04-06
No synopsis
Episode 19. Department of Beauty Art, Seokyeong Unviersity
2023-04-13
No synopsis
Episode 20. Department of Architecture, Soongsil University
2023-04-20
No synopsis
Episode 21. Department of Media Communication, Sungkyunkwan University
2023-04-27
No synopsis
Episode 22. Department of Companion Animal Health, Yeonsung University
2023-05-04
No synopsis
Episode 23. Department of Nursing, Ajou University
2023-05-11
No synopsis
Episode 24. Department of Fashion Design, Hansung University
2023-05-25
No synopsis
Episode 25. Department of Hotel Culinary Arts, Korea Hotel & Tourism Technical College
2023-06-01
No synopsis
Episode 26. Military Academy #3
2023-06-08
No synopsis
Episode 27. Hanyang University Division of Materials Science and Engineering
2023-06-15
No synopsis
Episode 28. Department of Urban Administration, University of Seoul
2023-06-22
No synopsis
Episode 29. Division of Navigation Science, Korea Maritime and Ocean University
2023-06-29
No synopsis
Season 3
Season 4
Season 5
Season 6
18 episodes
EXO's Kai will be visiting various universities and experiencing various majors or departments.
Episode 81. How a KAIST student Eats Yeoptteok without hurting his tongue [KAIST Dept. of Chem]
2025-03-27 · 29 min
The long-awaited first episode of JeonKAIja is all about… Chemistry! 🧪🧑🔬
From wild science experiments that scream “mad scientist” to the first-ever department room raid in Jeongwaja history! With high hopes, JeongKAIja heads to the…
Episode 82. Boxing vs. Ssireum – Who Wins? [Yongin University Martial Arts]
2025-04-03 · 30 min
"Hey, you feeling confident?"
We visited the Martial Arts Department at Yongin University! From real sparring with a boxing athlete to intense ssireum matches with muscular opponents!
In the end, KAI got knocked out… And after just two…
Episode 83. US VS UK, Complete Analysis of English Pronunciation Differences [Sogang University English Language and Literature Department]
2025-04-10 · 29 min
How are you? I'm fine thank you. And you? Went to Sogang University Department of English Literature! Do English Literature majors learn this too?! From analyzing Harry Potter to free-talking with a native English speaker!
Episode 84. How much do you earn if you join ROTC?
2025-04-17 · 33 min
Salute!🫡
JeonKAIja, reporting for duty at ROTC! From physical training with ROTC cadets to an impromptu meeting with ZE:A Dong Jun!
Episode 85. The First Ever Fish Dissection on Korean Variety Show [Jeju National University – Department of Aquatic Life Medicine]
2025-04-24 · 35 min
KAI, the second major changer, visited Jeju University’s Department of Aquatic Life Medicine.
Thanks to the Department of Aquatic Life Medicine who allows us to have No. 1 snacks for alcohol, olive flounder. Nation’s first variety show…
Episode 86. Why Meat Tastes Better Than Vegetables [Sangmyung University – Department of Food & Nutrition]
2025-05-01 · 34 min
There's a university in Seoul that even Jeongwaja's never visited yet?
We went to Sangmyung University Food and Nutrition Department! From a surprisingly delicious toast recipe to anti-aging tips directly from a professor!
Jeongwaja returns with a second special episode! This time, he visits the student council! 💫
The highlight of student council work? The university festival! KAI takes on the mission of inviting aespa himself! Will he succeed...?
Episode 88. Conan & Luffy as professors? [Voice Acting Dept. at KBAS]
2025-05-22 · 39 min
By chance, in my childhood~🎶
Visited the Voice Acting Dept. Korean Broadcasting Art School! From top-tier anime dubbing like Teenieping to meeting the legendary voice actors behind Conan and Luffy! Live reveal of the voices from your…
Episode 89. Every Teacher Ever) Your Class is The Slowest! [Hanyang University College of Education]
2025-05-29 · 36 min
Jeongwaja, let's go to school! This time we went to Hanyang University's College of Education!
From a 8th grade class demonstration to making your own textbook! A trip down memory lane.
Episode 90. Jeongwaja Takes on Baking 🍞 [Hotel Baking & Pastry, Korea Tourism College]
2025-06-05 · 35 min
Jeongwaja Finally Hits the Bread Scene 🥖
Today, we visited the Hotel Baking & Pastry Department at Korea Tourism College!
From one-of-a-kind artisan loaves made with a Master's top-tier recipe to a chocolate workshop bursting with…
Episode 91. Why You're Not Getting Texts from Your Crush [Yonsei EE]
2025-06-12 · 32 min
Pikachu! 1 million volts!
Today, we visited Yonsei's Department of Electrical and Electronic Engineering!
From buzzing beginner analog labs
to hidden electronic theories in real-life applications!
A thrilling engineering deep dive by…
Episode 92. Becoming King Sejong [Korea Univ. Dept. of Korean Language & Literature]
2025-06-19 · 35 min
The language of our nation differs from that of China🤴🇰🇷
This time, we visited Korea University’s Department of Korean Language and Literature!
From classes that dig deep into phonology to emotionally rich lectures on modern poetry!…
Episode 93. Undecided on Your Major? Come on In [Woosong Univ. Division of Liberal Studies]
2025-06-26 · 36 min
Which major should we try today? Take a guess! For the first time ever, Jeongwaja visits the Division of Liberal Studies!
Today, everything’s free and flexible. The university is free, the major is free, even the classes are free?!
So,…
Episode 94. Finally Made It to the Ballet Department [Kookmin Univ.]
2025-07-03 · 30 min
The long-awaited ballet episode is here, Snackie! From a deep dive into ballet terminology to hands-on practice with the classic Swan Lake!
Will KAIja nail the ballet—or tear something else?
Episode 95. The easiest way to enter SNU [SNU Insect Club]
2025-07-24 · 28 min
Jeongwaja back with summer break, part 1 at SNU Insect Club! 🦟
From spine-chilling insect mukbangs to full-on summer break vibes with bug catching!
And, to enjoy the break the special guest, TEN, is invited?!👀
Episode 96. Go Bring Your Mom [Senior University]
2025-07-31 · 31 min
This is the second lesson! Part Two of the summer break special, Senior University!
From anti-aging secrets and the low-intensity health dance to heartwarming creative writing classes! Plus, the perfect guest for Senior University: Lee…
Episode 97. IVE WONYOUNG’s enlistment | Seokyeong University Military Science
2025-08-07 · 35 min
Salute! 🫡
JeonKAIja X JANG WONYOUNG ordered to a boot camp experience at the Military Science Department!
It's 🍀Lucky Vicky JANG WONYOUNG🍀 and 👿Unlucky JeonKAIja 👿 enlisting together
From the legendary Number 8 PT whole body…
Episode 98. Ugh, I'm Doomed [Course Registration]
2025-08-13 · 18 min
End of summer break, start of the semester JeonKAIja is finally back! The true start of the semester is none other than the 0.1-second battle: Course Registration.
From never-before-seen course registration tips to lightning-fast…
Season 7
15 episodes
Episode 98. How to Get Your Seat Upgraded [Inha Tech. Dept. of Aviation Management]
2025-09-25 · 22 min
Hello, I’m here as the stand-in today~
Taking the place of Jeongwaja, who escaped to the U.S., it's ??? here! 🔥
Kicking off Jeongwaja this time is the Department of Aviation Management, training future ground staff! ✈️
From super…
Episode 99. Calling Anyone Who Read Magic Han War! [SKK University, Classical Chinese Dept.]
2025-10-02 · 30 min
JeonKAIja back after a long time🎉
First department of the second semester is Classical Chinese Department!
"Eochapi" as in "Anyway" was Hanja characters? From surprising Hanja characters😱 to dizzy old myths🤯
Will JeonKAIja conquer…
Episode 100. CHANGSUB X KAI Unite! [Dongguk Uni. Police Admin. Correctional Science Major]
2025-10-16 · 31 min
🎉Time to celebrate! 100th episode of Jeongwaja!🥳
We have CHANGSUB, our returning student! Former Jeongwaja X JeonKAIja collaboration!
These two revisit the Police Administration Major, the place where it all started!👮♀️
Bromance…
Episode 101. EXchange, I'm Solo, "Jeongwating"! [SKKU X EWHA Group Date]
2025-10-23 · 44 min
Part 2 of the 100th episode!🥳
What JeonKAIja and Former Jeongwaja have been waiting for all this time!💕
From From a heart-fluttering first impressions
to dopamine-filled drinking games! 😘
Will their love be able to blossom
amidst…
Episode 102. Ranking the Most Sculpted Faces (feat. D.O.) [UOS, Sculpture Dept]
2025-10-30 · 31 min
JeonKAIja visits an art college for the first time!
And here comes freshman DO KYUNG SOO?!
From mind-breaking theory classes
to fiery metal sculpture practice 🔥
The two get completely lost in the heat of metalwork!
Looks like their…
Episode 103. The Blood Type VS MBTI War [KBU Clinical Laboratory Science Dept.]
2025-11-06 · 28 min
Who hasn't gotten a health checkup yet?✋
This time, we visited Kyungbok University's Clinical Laboratory Science Department!
From a blood-curdling dissection lab you've never seen before✂️
to a blood-draw practice that pricks💉
In a…
Episode 104. A Major Filled With Otaku [Kyonggi Univ. Japanese Language & Literature]
2025-11-13 · 36 min
Today, JeonKAIja visits the Japanese Language and Literature Department at Kyonggi University!
From ordering food in Japanese🍜
to deep-diving into otaku culture!📺
JeonKAIja gets overwhelmed by the next-level otaku power🤣
Will he…
Episode 105. A Major That Drinks Every Day? (feat. ITZY CHAERYEONG) | KHTC Hotel F&B Dept.
2025-11-20 · 34 min
A major where you drink every day?
Join ITZY’s CHAERYEONG🦊 as she dives into Hotel Food & Beverage Management!
From hands-on beverage training where drinking is totally legal 🍸
to real hotel banquet service with actual guests🔥
A…
Episode 106. Korea VS Yonsei Uni. Blind Date: Sudden Death[Yeon x Ko Business Administration]
2025-11-27 · 44 min
Finally, Jeongwaja Blind Date has returned💕
Enemies meet up in a blind date?!
YeonKo, I mean, KoYeon blind date is here🥳
With an intense Jenga game
and a fluttering whisper game!😘
Flirting between Yonsei Eagles🦅 and Korea…
Episode 107. A Department That Doesn't Use YouTube Premium [Chung-Ang Univ. AD&PR Dept.]
2025-12-04 · 30 min
What an advertisement and public relations! 🕺
The ultimate PPL addict, JeonKAIja!
Today, we're visiting Chung-Ang University's Department of Advertising & Public Relations!
From unique ways to measure creativity 📺
to hands-on ad…
Episode 108. Peeking into other people's dreams feat. Orbit [DGIST Dept. of Brain Science]
2025-12-11 · 33 min
A rough mind, anxious eyes…😎
Meet JeonKAIja, an IQ 138 brain-gical mind!🧠
Today, he visited DGIST’s Department of Brain Science!
From a dopamine-bursting brain lecture
to a hilarious encounter with Special Professor Orbit?!😂
A…
Episode 109. T Boy Meets the F Girl [Hongik Univ. X Hanyang Univ. Blind Date]
2025-12-18 · 48 min
Even at year's end, Jeongwaja Blind Date is still open for business 💘
"What's the basis of you liking me?"
A STEM guy who breaks love down like a formula meets,
"If you like someone, do you really need a reason?"
A liberal arts girl…
Episode 110. International Students Want to Date As Well [ International students. Blind Date]
2026-01-08 · 47 min
Jeongwadate continues into the new year 🌅💛
This time, Jeongwadate goes global 🌐
Love knows no borders!
International students from all around the world,
and flirty moments inspired by every culture ❤️🔥
Different languages, same…
Episode 111. College Ver. Single's Inferno OPEN (feat. EXO SEHUN) [PE x Music Blind Date]
2026-01-22 · 45 min
weeter than Dubai Chewy Cookie 🧆
Hotter than Single's Inferno
Jeongwaja Blind Date is back🔥
A Music Dept x Physical Ed Dept blind date
curated by EXO's SEHUN 💕
Rhythm-filled music majors meet
physique-maxed physical ed majors…
Feeling extra fluttery today, Snackies 💗
Your heart’s getting a serious workout today 💪
This one’s going to stay on your mind before bed
Cold brains, hot romance
Legendary chemistry between SNU and KAIST students.
Even the…
![How a KAIST student Eats Yeoptteok without hurting his tongue [KAIST Dept. of Chem]](https://image.tmdb.org/t/p/w300/uJ1FIOfmgP4g5sxUpiSPLTL8jx9.jpg)
![Boxing vs. Ssireum – Who Wins? [Yongin University Martial Arts]](https://image.tmdb.org/t/p/w300/dXfcMoRUvoSrD1LCbl14RpqdyV4.jpg)
![US VS UK, Complete Analysis of English Pronunciation Differences [Sogang University English Language and Literature Department]](https://image.tmdb.org/t/p/w300/d4uzdpVLcb5m0mnqEKfqK77k4la.jpg)
![The First Ever Fish Dissection on Korean Variety Show [Jeju National University – Department of Aquatic Life Medicine]](https://image.tmdb.org/t/p/w300/fcZ4PogUDSZgutXXwnBgkLFhL2y.jpg)
![Why Meat Tastes Better Than Vegetables [Sangmyung University – Department of Food & Nutrition]](https://image.tmdb.org/t/p/w300/4J7of0pejAbd4kuIOoAWImWdsFM.jpg)
![Jeongwaja Announces Candidacy (feat. aespa) [Hongik Uni. Student Council]](https://image.tmdb.org/t/p/w300/iw2HKgoEh59uXkli1b8We5GEDBK.jpg)
![Conan & Luffy as professors? [Voice Acting Dept. at KBAS]](https://image.tmdb.org/t/p/w300/2NrHOlRWEaJQe7kTe5QEARcK41y.jpg)
![Every Teacher Ever) Your Class is The Slowest! [Hanyang University College of Education]](https://image.tmdb.org/t/p/w300/cwyiQJhqlFU9SCDlpyNC6FiF0FY.jpg)
![Jeongwaja Takes on Baking 🍞 [Hotel Baking & Pastry, Korea Tourism College]](https://image.tmdb.org/t/p/w300/x1paRoRXpnPut7JVV12L3wBCAqN.jpg)
![Why You're Not Getting Texts from Your Crush [Yonsei EE]](https://image.tmdb.org/t/p/w300/7QK4cTSViJGwFl5yri0aBMLkcDq.jpg)
![Becoming King Sejong [Korea Univ. Dept. of Korean Language & Literature]](https://image.tmdb.org/t/p/w300/nDJPtcQ3fsodUBonQtwN2Qu6nql.jpg)
![Undecided on Your Major? Come on In [Woosong Univ. Division of Liberal Studies]](https://image.tmdb.org/t/p/w300/vFLAkER5ZYumoLks307YkK7EKZB.jpg)
![Finally Made It to the Ballet Department [Kookmin Univ.]](https://image.tmdb.org/t/p/w300/aB1EdKfc5hVsW4xS2E7kWgRKX0w.jpg)
![The easiest way to enter SNU [SNU Insect Club]](https://image.tmdb.org/t/p/w300/jS3WZ05FlfVOOowUHX589ZiRH7G.jpg)
![Go Bring Your Mom [Senior University]](https://image.tmdb.org/t/p/w300/ccfyiV1GE91rXufV8uKeN1qNQi0.jpg)
![Ugh, I'm Doomed [Course Registration]](https://image.tmdb.org/t/p/w300/2Dye6wJWFhFjdnv3vIsLcj00WZx.jpg)
![How to Get Your Seat Upgraded [Inha Tech. Dept. of Aviation Management]](https://image.tmdb.org/t/p/w300/u92fQr9fRqRCnwoNPpitbQ1jLto.jpg)
![Calling Anyone Who Read Magic Han War! [SKK University, Classical Chinese Dept.]](https://image.tmdb.org/t/p/w300/3Ilasa5lzh1KEkayI9zsvd0oHke.jpg)
![CHANGSUB X KAI Unite! [Dongguk Uni. Police Admin. Correctional Science Major]](https://image.tmdb.org/t/p/w300/hwXCFAjPOBMEfwNyb3eiACLM1jv.jpg)
