Episode 1
SangWoo removes his teammates' names from a group presentation for being freeloaders. JaeYoung, who then fails the subject, vows revenge.
Series
Semantic Error
시맨틱 에러
“An exciting error interrupts their perfectly structured life.”
2022EndedSouth Korea23 min
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What's it about?
Chu Sang U, a strict computer science student, clashes with design major Jang Jae Yeong after removing his name from a project, leading to unexpected sparks.
Where to stream?
Rakuten Viki
Checked 08/22/2026 · last check was a while ago · United States catalog · account required.
Available (check outdated)
Availability data partly provided by JustWatch via TMDB.
Trailers & videos
시맨틱 에러ㅣ캐릭터 예고편ㅣ왓챠 오리지널 — Trailer · Korean · official · YouTube
Official Trailer [Subtitled]
시맨틱 에러ㅣ티저 예고편ㅣ왓챠 오리지널
[4K] 심장 꽉 붙들어. ⟨시맨틱 에러⟩ 스페셜 코멘터리 간다.
시맨틱 에러 메이킹을 모아보았습니다. 오늘 무슨 날이냐고
박서함X박재찬 첫 만남 기억ㅎrㄴi💓 시맨틱 에러 대본 리딩 현장 속으로🧨!ㅣ버그발생 하드털이
6 videos — they play on each provider's site
Cast
Park Seo-ham
박서함
Jang Jae-young
8 episodes
Park Jae-chan
박재찬
Choo Sang-woo
8 episodes
Song Ji-oh
Choi Yoo-na
8 episodes
Kim No-jin
Ryu Ji-hye
8 episodes
Kim Won-gi
Go Hyung-tak
8 episodes
Choi Su-geon
Han Soo-young
8 episodes
Cha Jae-hoon
차재훈
Lee Dong-geon
8 episodes
Jung Joon-gyo
Ted Hyung
8 episodes
Ki Hyun-woo
기현우
Jae-young's Junior 2
1 episode
Kyoung-yoon
경윤
Waiter
1 episode
10 people — scroll sideways
Crew
Producer
Kim Dong-rae, Kim So-hui, Park Ji-bok, SJ Shin, Im Min-ju
Writer
Jeo Soo-ri, Jeiseon
Director
Kim Soo-jung
Episodes
Season 1 — 8 episodes · from 02/16/2022
Page 1 of 1 · Episodes 1–8
Episode 2
JaeYoung disrupts SangWoo's carefully ordered existence.
Episode 3
SangWoo tries to regain control. JaeYoung prevents a fight between SangWoo and a potential mentor in a bar.
Episode 4
SangWoo allows JaeYoung to visit for ten minutes. JaeYoung decides to change his approach. They perform their French presentation together.
Episode 5
JaeYoung invites SangWoo to the movies, causing him confusion. JaeYoung vows to leave SangWoo alone, taking a part-time job to keep busy. JiHye helps SangWoo debug an error.
1 guest appearance
Kyoung-yoon (Waiter)
Episode 6
SangWoo attempts to apologise, but JaeYoung is unmoved. SangWoo tries again, and JaeYoung agrees to work on the project together. Their respective working styles cause problems.
Episode 7
SangWoo and JaeYoung play Yaja Time. JaeYoung and JiHye discuss SangWoo, and YuNa tells SangWoo about JaeYoung's past relationships. JaeYoung gives SangWoo a demo of the proposed two-week trial. JaeYoung is accepted into Dex.
Episode 8
SangWoo refuses the two-week trial. YuNa accuses JaeYoung of being boring. JiHye confesses to SangWoo. SangWoo confesses to JaeYoung.
1 guest appearance
Ki Hyun-woo (Jae-young's Junior 2)
Image gallery
Posters (24)
Stills (26)
Images © their respective rights holders · Source: TMDB