Rin has been watching her son grow up healthy. He has overcome his rebellious period, is able to study, and is also a good friend Takeshi. One day, Takeshi came to visit his house for the first time in a while. Takeshi, who had been in love with Rin for a while, somehow ends up taking over Rin's weakness. After his long-standing feelings have gone wild, Rin is threatened by Takeshi, who has gone wild with him, and offers him his own actions...