Keiko lives with her husband's stepchild Yoshio in a house where her remarried husband is away on an overseas business trip. I can't stop thinking about Yoshio, who has been getting stronger lately, but I don't think I should be conscious of him as the opposite sex. And Yoshio was mad with jealousy alone imagining Keiko's dementia who was seduced by her classmates and indulged in lust. And finally, the two confirm their love. and….