After several years of marriage... The Sakurai couple remains as affectionate as ever. However, the husband harbors a deep distress. He truly loves his wife, Nanako, but his body cannot respond to her affections. His anguish stems from "erectile dysfunction." Yet, Nanako is young, her body sensitive and insatiable. Desiring to grant her the ultimate pleasure, the husband resolves to invite her to a "playroom" where he plans to captivate her with feather touches and full-body caresses, ultimately leading her to a fierce climax.