[Mosaic removed] Natsume, who lives with her husband and brother-in-law, secretly has feelings for her brother-in-law.Natsume's sexual desire has been building up, and one day, her drunk brother-in-law asks her to kiss him, they have sex without a condom, and he even allows her to cum inside him...She awakens to a pleasure that her husband cannot experience, and repeats intense creampie sex that burns...From that day on, a strange double life begins...