Semantic Error (novel), Vol. 1

When meticulous computer science major Sangwoo Choo removes three freeloading teammates from his class project, he considers it simple logic — a clean deletion, perfectly justified. He never considers the consequences. He never considers Jaeyoung Jang.

Jaeyoung is everything Sangwoo isn't: magnetic, spontaneous, and absolutely furious. One failed grade has shattered his dreams of studying abroad, and he knows exactly who is responsible. So when fate drops them onto the same game design project, Jaeyoung decides that if Sangwoo wants to play by ruthless rules, then two can play that game. He plants himself firmly in the center of Sangwoo's precisely ordered world and refuses to leave.

What starts as calculated revenge quickly becomes something neither of them knows how to code their way out of. Sangwoo's rigid logic keeps short-circuiting whenever Jaeyoung is nearby, and Jaeyoung's carefully rehearsed anger keeps softening at the worst possible moments. The closer they're forced to work together, the harder it becomes to remember that they're supposed to be enemies.

This Korean university romance — the beloved manhwa adaptation now in full novel form — delivers everything fans fell for and more: sharp wit, slow-burn tension, and two wildly mismatched men who keep colliding until collision starts feeling a lot like connection.

With a breathtaking 4.8-star rating, Semantic Error is the LGBTQ+ romance that proves some of the most brilliant discoveries happen when your carefully written program finally meets its match.