In the streets, a disease in which lewd marks appear on the lower abdomen is prevalent. When the lewd mark appears, the woman gets so horny that it interferes with her daily life, and the only way to suppress the symptoms is to be held by a man.

One day, Kazuya Sone, who works as a therapist at a male-only lewd treatment clinic, realizes that he has been infected with lewdness. Kazuya, who has never been held and has no one to hold him, asks for help from his colleague Taku, who has the best technique in the hospital...