Changing Majors

Changing Majors (Korean: 전과자) is a South Korean variety web series featuring various universities, colleges and schools, and the courses offered inside.^[1] Each episode of the series would be released at 18:00 (KST) on Thursdays through ootb Studio's YouTube channel.^[2]

ENA aired past episodes of the series that were re-processed for television, every Friday beginning May 23, 2025, for 10 weeks.^[3]

The series starred Lee Chang-sub of BtoB for the first five seasons, and Kai of Exo beginning season 6.^[4]

Cast

• Lee Chang-sub (BtoB) (Seasons 1–5)
• Kai (Exo) (Season 6–present)

Episodes

Season 1

Season 2

Season 3

Season 4

Season 5

Season 6

Season 7

Season 8

Reception

Impact

In episode 22 of the series, Lee visited Yeonsung University. During the lunch break period, he discovered the university cafeteria served only 2 types of dishes, and he listened to the dissatisfaction from the students attending the university regarding the university cafeteria's menu. After the episode was aired, an online community post shared that the university cafeteria's menu had increased from 2 types of dishes to 40 types of dishes. An official from the university shared that Lee (and the series) had played a role in executing this change for the new semester.^[5]

Controversy

On October 5, 2023, after the release of episode 35 of the series, many have posted on Korea University's online community regarding the series' filming staff while filming of the said episode was done in the university. Those posts had stated the staff's abuse of authority such as restricting the university's undergraduates from entering the student center, and prohibiting talking among students in the venue while filming. Subsequently, many have requested, through the uploaded video's comments section, for an apology from the series' production team, but had been blocked. This controversy was spread out to various other online communities, with several students from other universities sharing their negative experiences with the filming staff while filming in those universities.^[6] The next day, the series' production team issued an apology as a pinned comment on ootb Studio's latest uploaded video, and later uploaded another apology as a community post on ootb Studio's YouTube channel. As a result of this controversy, a new episode was not uploaded on October 12 and would return the following week after reorganization.^[7]

Spin-off: Jeongwating

During Season 7 of the series, episodes 101 and 106 were spin-off episodes which featured male and female students from different universities gathering to socialize and potentially find a romantic partner. These episodes had received positive and enthusiastic responses, hence on December 2, 2025, ootb Studio announced that this group date spin-off titled "Jeongwating" (Korean: 전과팅) would officially become a regular show beginning January 2026, with new episodes releasing every alternate week during the school winter break in Season 7.^{[citation needed]}

Notes

1. ^ With the following professors that had previously appeared in the series: * Lee Sang-won (Episode 4 - Konkuk University Veterinary Medicine department professor) * Kim Hyoun-woo (Episode 27 - Hanyang University Material Science and Engineering department professor) * Lee Dong-ki (Episode 41 - Kookmin University Law department dean)
2. ^ With the following undergraduates that had previously appeared in the series: * Go Jung-min (Episode 9 - Yong In University Physical Education department) * Song Seong-hyun (Episode 24 - Hansung University Fashion Design department) * Jo Su-hyeon (Episode 44 - KAIST Aerospace Engineering department) * Jung Yoon (Episode 48 - Ajou University Pharmacy department) * Jo Joon-gi (Episode 49 - Hanyang University Vocal Music department) * Jeong Mun-sik (Episode 52 - Seoul National University Material Science department) * Kim Da-hyun (Episode 56 - Seoul National University of Education Elementary Education department) * Maria Moldrick (Episode 57 - Hankuk University of Foreign Studies Korean Language Education department; from Sweden) * Choi Jun-hee (Episode 58 - Pukyong National University Marine Sports department)
3. ^ With the following undergraduates: * Choi Eun-bi (Ewha Womans University Ceramic Arts department; previously appeared in episode 51) * Yoon Shin-hyul (Sungkyunkwan University Classical Chinese department; previously appeared in episode 99) * Han Seung-heon (Sungkyunkwan University Classical Chinese department; previously appeared in episode 99) * Oh Ji-seok (Sungkyunkwan University Classical Chinese department; previously appeared in episode 99) * Oh Yoo-na (Ewha Womans University Ceramic Arts department) * Ha Ye-rim (Ewha Womans University Ceramic Arts department)
4. ^ With the following undergraduates: * Park Seung-min (Yonsei University Business Administration department) * Shin Min-seo (Korea University Business Administration department) * Han Dae-yoon (Yonsei University Business Administration department) * Kwon Do-hoon (Yonsei University Business Administration department) * Kim Joon-ho (Yonsei University Business Administration department) * Yoon Eun-seo (Korea University Business Administration department) * Kim Ru-bin (Korea University Business Administration department) * Lee Ji-ah (Korea University Business Administration department)
5. ^ With the following undergraduates: * Kim Sang-do (Hanyang University Mechanical Engineering department) * Park Eun-bi (Hongik University Korean Language and Literature department) * Jung Jin-ho (Hanyang University Mechanical Engineering department) * Kim Pu-reum (Hanyang University Mechanical Engineering department) * Jung Hyun-jun (Hanyang University Mechanical Engineering department) * Kim Jun-ah (Hongik University Korean Language and Literature department) * Park Sung-hye (Hongik University Korean Language and Literature department) * Ahn Hyo-won (Hongik University Korean Language and Literature department)
6. ^ With the following undergraduates: * Kim Joon-ho (Yonsei University Business Administration department; previously appeared in episode 106) * Kim Ga-yun (Yonsei University Business Administration department) * Nachi Arakaki (Yonsei University English Language and Literature department exchange student; from Japan) * Chen Si Hao (Kyung Hee University Media Studies department; from Taiwan) * Namuundelger Enkhtuvshin/Han Na Na (Yonsei University Biotechnology department; from Mongolia) * Birken Michael Silitch/Lee Ji Sang (Yonsei University Artificial Intelligence department; from United States) * Leon Strömvall (Seoul National University Korean Language and Literature department exchange student; from Sweden) * Khasbaatar Rentsendorj/Jack (Korea University Global Entertainment department; from Mongolia)
7. ^ With the following undergraduates: * Ji Sun-jun (Korea National Sport University Physical Education department) * Song Ah-young (Yonsei University College of Music) * Choi Ye-rin (Yonsei University College of Music) * Kim Min-seon (Yonsei University College of Music) * Kang Ji-won (Yonsei University College of Music) * Kim Su-gyo (Korea National Sport University Physical Education department) * Tae Min-jae (Korea National Sport University Physical Education department) * Kim Hyo-bin (Korea National Sport University Physical Education department)
8. ^ With the following undergraduates: * Lee Gyu-won (Seoul National University Aerospace Engineering department) * Song Si-hyun (KAIST Biochemical Engineering department) * Wang Hee-chan (Seoul National University Aerospace Engineering department) * Kim Joon-hee (Seoul National University Aerospace Engineering department) * Lee Nam-yong (Seoul National University Aerospace Engineering department) * Kim Bo-bin (KAIST Biochemical Engineering department) * Jo Soo-bin (KAIST Industrial Design department) * Kim Bo-kyung (KAIST Industrial Design department)
9. ^ With the following undergraduates: * Jo Ho-jin (Seoul Institute of the Arts Acting Major) * Im So-hyun (Chung-Ang University Psychology department) * Shin Woo-cheol (Seoul Institute of the Arts Acting Major) * Hwang Young-cheol (Seoul Institute of the Arts Acting Major) * Min Kyung-seo (Seoul Institute of the Arts Acting Major) * Kwon Ye-bin (Chung-Ang University Psychology department) * Kim Ha-yeon (Chung-Ang University Psychology department) * Lee Na-young (Chung-Ang University Psychology department)
10. ^ With the following undergraduates: * Kim Su-gyo (Korea National Sport University Physical Education department; previously appeared in episode 111) * Lee Nam-yong (Seoul National University Aerospace Engineering department; previously appeared in episode 112) * Yoo Joo-won (Hongik University Electrical Engineering Major; previously appeared in the special episode of Season 7 which was released on September 18, 2025) * Yoon Eun-seo (Yonsei University Business Administration department; previously appeared in episode 106) * Oh Yoo-na (Ewha Womans University Ceramic Arts department; previously appeared in episode 101) * Kim Ha-yeon (Chung-Ang University Psychology department; previously appeared in episode 113)

References

1. ^ Hwang, Hye-jin (November 3, 2022). "ko:비투비 이창섭, 대학교 예능 출연...고동완 PD와 호흡[공식]" [BTOB's Lee Chang-sub to appear on a university variety show... collaboration with PD Ko Dong-wan [Official]] (in Korean). Newsen. Retrieved October 29, 2024. – via Naver
2. ^ Myung, Hee-sook (November 8, 2022). "ko:비투비 이창섭, 고동완 PD 손잡고 '전과자' 된다 "전국 대학 누벼"" [BTOB Lee Chang-sub, collaborates with Ko Dong-wan PD and becomes 'Changing Majors' "explore universities around the country"] (in Korean). My Daily. Retrieved June 2, 2024. – via Naver
3. ^ Kim, Chae-yeon (May 15, 2025). "ko:1대 이창섭→2대 카이 ‘전과자’, 이제 ENA에서 본다..TV 최초 공개 [공식]" [1st generation Lee Chang-sub→2nd generation Kai 'Changing Majors', now can be viewed on ENA.. first release on TV [Official]] (in Korean). OSEN. Retrieved March 10, 2026.
4. ^ Kim, Na-yeon (February 17, 2025). "ko:"목 건강 때문" 이창섭, '전과자' 졸업한다..후임은 엑소 카이 [공식]" ["Due to throat health" Lee Chang-sub, graduates from 'Changing Majors'.. successor is EXO's Kai [Official]] (in Korean). Star News. Retrieved February 17, 2025. – via Naver
5. ^ Kim, Ye-na (September 1, 2023). "ko:이창섭 큰일했다...연성대 "학식 메뉴 40개로 늘어나, '전과자' 효과" [엑's 이슈]" [Lee Chang-sub has done something big... "Yeonsung University cafeteria menu increased to 40, Changing Majors' effect" [X's Issue]] (in Korean). Xports News. Retrieved June 2, 2024. – via Naver
6. ^ Lee, Mi-na (October 6, 2023). "ko:"'전과자' 스태프 갑질" 고려대생 뿔났다...제작진 "정중히 사과"" ["'Changing Majors' staff's abuse of authority" anger from Korea University students... production team "sincerely apologises"] (in Korean). Hankook Kyungje. Retrieved June 2, 2024. – via Naver
7. ^ Yoo, Ji-hye (October 13, 2023). "ko:웹예능 '전과자' 스태프 갑질 논란으로 휴방 [연예뉴스 HOT]" [Web variety 'Changing Majors' to take a break from broadcast due to staff's abuse of authority controversy [Entertainment News HOT]] (in Korean). Sports Donga. Retrieved June 2, 2024. – via Naver