The story takes place in an old-fashioned mansion with a very retro and gorgeous style. You are the manager of the apartment, where a fateful encounter awaits you. Takumi Ashihara (voiced by Tomoaki Maeno), who is very athletic and looks cold and ruthless but is actually very gentle; Aoi Nishina (voiced by Natsuki Hanae), who is already an excellent actor at a young age and studies while acting; Shinya Miyazaka (voiced by Hiroki Toriumi), who is a senior executive of a famous company and has a very strict personality and even a slightly sadistic tendency, but also has a considerate, steady and reliable side. These are the three men with very different personalities living in the apartment. Every day, you watch them coming in and out. What kind of sparks will collide between you?