help!!

i'm trying to find a webtoon where a boy realizes that the person he admires on instagram goes to his university. The guy's instagram handle name is John, I believe? The university is set around art.. I think.. And I remember one scene where another student talked badly of the main character because he was a transfer student who are stereotypically did not work hard to get into the school--but then the story diverges into the background story of the main character who was abused by his father and was once suidical?