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High School Mystery Club (여고추리반)

High School Mystery Club (여고추리반, also translated Girls' High School Mystery Class) is a South Korean mystery-adventure variety series in which five celebrities, cast as transfer students, investigate suspicious incidents at a girls' high school. It was the first original variety program of the Korean streaming service TVING, directed by Jeong Jong-yeon, the producer behind The Genius and The Great Escape, and premiered on January 29, 2021.1 • 2

Key factDetail
FormatMystery adventure in which five cast members, as transfer students, solve cases at a fictional girls' high school; each season is a single connected story rather than an omnibus2
CastPark Ji-yoon, Jang Do-yeon, JaeJae, BIBI, and Choi Ye-na, unchanged from season 1 through season 33
Season 1TVING, January 29 to March 19, 2021, 16 episodes plus a special; TVING's first original program1
Season 2Released from December 2021, final episode February 18, 2022; unique viewers up more than 120% versus season 1 over the same period4 • 5
Season 3April to June 2024, 8 episodes, with Im Soo-jung as main director after Jeong Jong-yeon stepped down6 • 7
Commercial performanceSeason 1 ranked first in TVING's paid-subscription contribution metric for 26 consecutive days from episodes 7–8 through the finale8

Spoilers

Format and premise

Each season places the five cast members in a new school as transfer students who join the school's mystery club and unravel a connected storyline. Season 1 is set at the fictional Saera Girls' High School (새라여고), where the club investigates disappearances and conspiracies involving students, teachers, and the police. Jeong Jong-yeon described the program as one in which cast members, participating as real players, solve suspicious incidents at a high school one by one, and said the idea grew out of a girls'-school episode of The Great Escape.2

Unlike the omnibus structure of The Great Escape, each season of High School Mystery Club runs as a single continuous story, and Jeong said viewers need to watch to the end for the major plot threads to resolve.2 The production builds elaborate physical sets: for season 1, an abandoned school in Hongseong, South Chungcheong Province, was renovated over about three weeks into the Taepyeong Girls' High School set, with a principal's office, staff room, school store, club room, and even a donation seat, and sets continued to be added or revised during filming.9 Non-player characters (NPCs), actors playing teachers and students with scripted roles, appear throughout; Jeong said NPCs were selected through auditions, with some performers, such as Moon Sang-hoon, recruited directly after the production encountered them in other media.8

Cast and chemistry

The five members are broadcaster Park Ji-yoon, comedian Jang Do-yeon, host JaeJae, rapper BIBI, and singer Choi Ye-na. Jeong said he cast Park Ji-yoon as an anchor he trusted to keep the group oriented, given her record on the deduction show Crime Scene, and that he wanted performers matching TVING's younger target audience rather than all-age name recognition.2 • 8 He rated the group's chemistry "100 points," noting that most members barely knew each other beforehand and that closeness formed quickly from the first recording.8 Reviewers on the aggregation site Kinolights likewise praised the members for cooperating fully on problems without bickering over individual credit.10

Seasons and reception

Season 1 (2021). The first season ran on TVING from January 29 to March 19, 2021, in 16 episodes plus a special, with new episodes released Fridays.1 • 11 Within eight episodes it surpassed the viewership of Jeong's previous work The Great Escape 3 on VOD, and from episodes 7 and 8 until the finale it held first place in TVING's paid-subscription contribution ranking for 26 consecutive days.8 A later trade analysis noted that early episodes drew mixed reactions but that praise rose sharply from mid-season as the cast's immersion and deduction improved, completing what viewers described as a growth arc.12

Season 2 (2021–2022). The second season moved the club to a new school and expanded the scale and worldview; its cases included a body found in a reservoir and incidents at a Halloween party.4 • 13 All episodes were released on December 18, 2021 (Korean reporting), followed by a commentary video on the 25th; the finale aired February 18, 2022.5 • 4 Unique viewers over the season's eight weeks rose more than 120% compared with the same period of season 1, and TVING reported that season 2 ranked first among all its content in paid-subscription contribution on its release day.4 • 14 tvN also rebroadcast season 2 episodes on linear television.15

Season 3 (2024). In November 2023 TVING announced a third season with Jeong Jong-yeon stepping down and Im Soo-jung, who had directed alongside him since season 1, taking over as main director, with writer Gong Yun-hee, stage director Hwang Woo-taek, and art director Jang Yeon-ok returning.7 The season, set at Songhwa Girls' High School, ran for 8 episodes from April to June 2024 and incorporated school-gothic elements such as curses and rituals that viewers had asked for, alongside themes of gambling and school violence.6 • 16 Its most-discussed innovation was a metaverse: the gambling den at the heart of the story was built on the ZEP metaverse platform, and fans visited the in-show spaces while the season aired.16 The season reached 5th place in GoodData Corporation's TV-OTT non-drama buzzworthiness chart on May 28, 2024.17 Reviewers praised the cast's established characters and chemistry but criticized contrived hints and plausibility gaps, and the finale ended with a returning villain and an apparent setup for a fourth season.16

Place in Korean mystery variety

The series is part of the deduction-and-brain-game lineage built by Jeong Jong-yeon, whose credits include tvN's The Genius, Society Game, and The Great Escape; Korean trade press credits him with establishing season-based mystery variety on OTT platforms.4 • 18 Its alumni have carried the format elsewhere: JaeJae, described in Korean press as the series' key brain, joined the cast of Netflix's The Devil's Plan season 3.18 The show also built an unusually active fan culture, with weekly deduction discussions in online communities during season 1 and a pop-up cafe in Hongdae after season 3 that drew large crowds.8 • 16

References

  1. 여고추리반, Namu wiki
  2. ["끝까지 봐야 큰 떡밥 해결"..'여고추리반' 정종연PD의 新추리예능[종합], Star News (2021.01.18)](https://www.starnewskorea.com/broadcast-show/2021/01/18/2021011815133854883)
  3. 마니아 많은 여고추리반3 '여고괴담'으로 돌아오다, Idolounge (2024)
  4. OTT형 시즌제 예능으로 자리매김한 '여고추리반', 감독이 밝힌 매력은?, Hankook Ilbo (2022.02.28)
  5. 여고추리반 2 코멘터리 공개 보도, Newstomato
  6. [[인터뷰] 〈여고추리반3〉 임수정 PD에게 듣는 송화여고 (메)추리반 비하인드!, Cineplay (2024.05.24)](https://www.cineplay.co.kr/ko-kr/articles/14695)
  7. '여고추리반' 시즌3 내년 공개…"정종연 PD 하차, 출연진은 그대로", Bridge Economy (2023.11.02)
  8. ['여고추리반' 정종연 PD "비비, 활약 기대 이상..멤버 케미 100점"[인터뷰S], Spotv News via Daum (2021.04.04)](https://v.daum.net/v/cyhO6CgbXV?f=p)
  9. [[쿠키인터뷰] '여고추리반' 정종연 PD의 '영웅론', Kukinews (2021.04.07)](https://www.kukinews.com/article/view/kuk202104060279)
  10. 여고추리반 다시보기, 키노라이츠 리뷰
  11. OTT 오리지널 콘텐츠 경쟁 시대, 소비자평가회원소비자모니터링센터
  12. 시즌제 이어간 OTT산 예능들, Cineplay
  13. High School Mystery Club2, CJ ENM
  14. 여고추리반 시즌2 유료가입기여 1위 보도, KISDI Perspectives
  15. tvN, '여고추리반' 시즌2 4회 재방송, Biz Enter
  16. [[리뷰] 넷플 '미스터리 수사단', 티빙 '여고추리반' 전격 분석, Global Economic (2024.07.07)](https://www.g-enews.com/article/ICT/2024/07/20240707133208770ea588b1547_1)
  17. Global OTT Trends Vol.6, KOCCA
  18. 넷플릭스 '데블스 플랜3' 라인업 공개, Edaily (2025)

Initially written Oct 3, 2026 · Reviewed: Oct 25, 2026 · Edited: Oct 15, 2026; Oct 25, 2026; Nov 1, 2026

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High School Mystery Club (여고추리반)

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