Series synopsis
Changing Majors, also known as 전과자 is a South Korean talk reality television series that premiered on YouTube on November 11, 2022. It was created by Go Dong-wan. It stars Lee Chang-sub and Kai.
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.
Premise
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.
Premise: The man who changes his major everyday
Cast and characters
Leading cast
- Lee Chang-sub as Self - Host
- Kai as Host
Guest cast
- Shin Hyun-jun as Self
- Key as Self
- Seo Eun-kwang as Self
- Lee Min-hyuk as Self
- Lim Hyun-sik as Self
- Peniel Shin as Self
- Yook Sung-jae as Self
- Kim Dong-jun as Bit part
Episodes
This series spans 7 seasons with 134 episodes.
| Season | Episodes | First aired | Last aired |
|---|---|---|---|
| Season 1 | 83 | November 11, 2022 | January 8, 2025 |
| Season 2 | 18 | June 29, 2023 | |
| Season 3 | 0 | ||
| Season 4 | 0 | ||
| Season 5 | 0 | ||
| Season 6 | 18 | August 13, 2025 | |
| Season 7 | 15 | January 29, 2026 |
| Episode | Title | Air date |
|---|---|---|
| 1 | Department of Police Administration, Dongguk University | November 11, 2022 |
| 2 | Department of Thai at Hankuk University of Foreign Studies | November 18, 2022 |
| 3 | Department of Broadcasting and Entertainment, Induk University | November 25, 2022 |
| Episode | Title | Air date |
|---|---|---|
| 12 |
Seoul National University's Broadcasting Club Changsub is joined by Key (from SHINee) as he reviews Seoul National University's Broadcasting Club during winter vacation. |
February 16, 2023 |
| 13 | Korea University's Cheerleading Club | February 23, 2023 |
| 14 | Dankook University's Stock Club | March 2, 2023 |
| Episode | Title | Air date |
|---|---|---|
| 81 |
How a KAIST student Eats Yeoptteok without hurting his tongue [KAIST Dept. of Chem] 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 very first campus! But… did he actually understand the KAIST lecture? 🤔 |
March 27, 2025 |
| 82 |
Boxing vs. Ssireum – Who Wins? [Yongin University Martial Arts] "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 shoots, did KAI grab the PD by the collar?! 👊 |
April 3, 2025 |
| 83 |
US VS UK, Complete Analysis of English Pronunciation Differences [Sogang University English Language and Literature Department] 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! |
April 10, 2025 |
| Episode | Title | Air date |
|---|---|---|
| 98 |
How to Get Your Seat Upgraded [Inha Tech. Dept. of Aviation Management] 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 useful airplane tips to hands-on check-in practice straight from the airport! What kind of chaotic campus life awaits our stand-in today..? 😎 |
September 25, 2025 |
| 99 |
Calling Anyone Who Read Magic Han War! [SKK University, Classical Chinese Dept.] 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 Hanja? |
October 2, 2025 |
| 100 |
CHANGSUB X KAI Unite! [Dongguk Uni. Police Admin. Correctional Science Major] 🎉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 blossoms amidst gossiping about the Jeongwaja production team and they take corrections classes: hope it sets these two straight! A total of 100 episodes between CHANGSUB X KAI Curious about their chemistry? |
October 16, 2025 |
Production
Release
| Original network/platform | YouTube |
|---|---|
| First aired | November 11, 2022 |
| Last aired | January 29, 2026 |
| Status | continue |