Luna-san, a 31-year-old gal widow, reminisces about the passionate lovemaking with her late husband and can't help but masturbate in front of his portrait! Her father-in-law spies on her and, with a strong habit of misunderstanding, thinks, "Ah, so that's how it is." Pretending to talk to his son in front of the portrait, he exposes himself to Luna, demanding a blowjob, saying, "I got permission from Takashi." Initially shaken, the loneliness and pleasure break her rationality, leading her to cross the line with her father-in-law...! In any case, Luna-chan's mourning attire as a Kansai gal is utterly captivating!