Ten years ago, Goto Naoya was the school's popular prince who treated the gloomy outcast Sato Takaaki like his personal errand boy. Now, their social standings have completely flipped: Naoya is unemployed after a business failure, while Takaaki has become a successful young IT CEO. Despite the reversal, Takaaki remains faithfully by Naoya's side like a devoted servant, as lingering pride, intense obsessions, and unresolved romantic feelings begin to warp their fragile dynamic.