Toshiya ends up living at the house of his first love, his aunt Kasumi. Living under the same roof with Kasumi, whom she admires... Just thinking about it makes Toshiya feel an uncontrollable desire, and she inadvertently looks into Kasumi's bathing. There, Kasumi was lonely and comforting her own body. Knowing her frustrations with Kasumi, Toshiya summons her courage and makes her proposal...
