Osôshiki no gibo: Toire de jôji

お葬式の義母 トイレで情事

Also known as 狙われた喪服妻 遺影の前で, Nerawareta mofukuzuma: Iei no mae de

Motoko, a married woman, returns to her childhood home for the funeral after receiving news of her father Yoshio's suicide. There, she discovers her late father's diary, which reveals the lewd desires he harbored for her—despite the fact that she was not his biological daughter.