The Sign of Three Knocks

Sakamoto, a new recruit at a company, finds himself living in the company dormitory, where first-year employees are required to reside. He shares a room with Shimasa, a handsome young man who is widely admired by his peers. However, beneath his charming exterior, Shimasa conceals a darker side. When Sakamoto discovers his sensitive nature, Shimasa exploits this knowledge to blackmail him into a romantic and intimate relationship. As Shimasa subjects Sakamoto to three intense encounters, the latter gradually loses his will to resist.