Jaeyoung x Sangwoo

Jaeyoung x Sangwoo is the slash ship between Jang Jae-young and Chu Sang-woo from the Semantic Error fandom.

Canon
Jaeyong and Sangwoo are students studying at the same college. They have been placed on a group project together, however, Sangwoo is the only student to partake in the project. For the final presentation, Sangwoo removes all of the freeloaders' names including Jaeyong. This prevents them from graduating. They first meet at an art exhibition, and Jaeyong wrongly assumes he wants a photo. After Jaeyong finds out he is unable to graduate, he calls Jaeyong, but there is no response. He tries to find him and even puts wanted posters up, but no luck.

Sangwoo is advertising a position to work on a mobile game, and Jaeyong agrees to the project. He is late for the meeting. He arrives and calls Sangwoo handsome. They talk, and Sangwoo admits he is a good designer. They decide to exchange phone numbers, and this is when Sangwoo learns that the man is one of the freeloaders. He decides to leave, but Jaeyong stops him and incites a rivalry between the two. He tells him to stay sorry, but Sangwoo refuses. Jaeyong asks what colour he hates and the place.

Jaeyong moves to a new apartment and is neighbours with Sangwoo. The next day, Sangwoo completes his morning routine but runs into several problems. First, outside of his door are boxes placed by Jaeyong. Next, the vending machine is out of Black Holic, his favourite drink. Jaeyong bulk purchased all of the coffee to prevent Sangwoo from buying it. Lastly, Sangwoo's seat has been taken in class. Jaeyong arrives dressed entirely in red since it is the colour Sangwoo hates. They have lunch together, and Jaeyong annoys Sangwoo. Jaeyong has Sangwoo's class schedule memorised and takes Sangwoo's seat in every class. They are paired together for a French exercise. They both return to their apartments, and Jaeyong accidentally frightens Sangwoo. They talk, and Sangwoo calls him 'Senior Psycho'.

The next day, Sangwoo fell asleep on his desk. Jaeyong decides to draw on his face using a marker pen. They argue outside. Jaeyong tells him to take the cap off, but he refuses, and Jaeyong finds it cute.

Sangwoo arrives at school at 6:30 am and beats Jaeyong to his seat. Once Jaeyong arrives, Sangwoo retrieves a wooden panel and places it between them, preventing Jaeyong from talking to him. The two are acting like rivals now. Jaeyong continues to annoy Jaeyong by throwing food wrappers. In the cafeteria, to avoid Sangwoo, Jaeyong eats food with a random group of students. Jaeyong sees Sangwoo eating lunch with Jihye, and overhears his nickname 'Sangchoo', meaning lettuce. Sangwoo tells Jihye they are close. On the walk out of campus, Sangwoo is annoyed that Jaeyong graffitied his game advertisment with the words 'claimed by Jaeyong', and tells him to go away.

At a bar, a man gets drunk, and is upset and angry at Sangwoo. The drunk man throws water him, so Sangwoo threatens to call the police. Jaeyong comes to his rescue, and sends a dart at the drunk man. He takes Sangwoo's hand and runs out of the bar. At the apartments, Jaeyong realises he doesn't have his bag and his phone is out of charge, so asks if he can use Sangwoo's laptop. At first, he refuses, but reluctantly agrees and Sangwoo gives him a 10 minute limit inside.

Fanon
Semantic Error is a popular Korean BL drama, and so the Jaeyoung/Sangwoo ship is especially popular in BL fandom. It gained some popularity from the original manhwa, however, the ship exploded in popularity after the release of the drama adaptation in 2022. It became popular both internationally and in Korea. There is some fanfiction, with over 130+ fanfictions on AO3.

The lead actor, Park Jae-chan, is also a member of K-pop group DKZ (formely known as Dongkiz). After the release of Semantic Error, the group saw a huge boost in popularity. In response, the group rebranded to DKZ. A lot of their success can be attributed to Semantic Error, and especially this ship in particular.

Fandom
FAN FICTION