Yamaguchi runs a successful personal gym from home but remains haunted by the bullying he suffered during his adult student days. The ringleader was his classmate Miyu, who hid his belongings and treated him like a dog. Just as he dreams of revenge, a now-married and seemingly happy Miyu walks into his gym without recognizing him. Furious, Yamaguchi slips aphrodisiacs into everything she consumes and begins a regimen of revenge-driven training and drug-heightened orgasms, pushing her until she begs for creampie sex.