My Dear Gangster Oppa

Guy is a college nerd who's secretly in love with his best friend Whan. To relieve his loneliness of the one-sided love, Guy's hobby is playing games. It's in a game that Guy meets a kind sister named Yuri who he later discovers is a handsome young mafioso named Tiw. While Guy starts to open his heart due to Tiw's gentleness, he gets to know Tiw's mysterious and terrifying past. Who Guy will choose? Whan, the only best friend he has known since childhood or Tiw the young mafia boss who is in danger?