Masahiro, who saw off his daughter-in-law who went on a trip, was busy with housework. Masahiro, who can't even do such housework, is rescued by his sister-in-law. "I'll do everything for that child, so please stay for one night" Alone with her sister-in-law, Yuko, who suddenly came. - The bewitching sex appeal that cannot be hidden and the beautiful face involuntarily swallow raw spit. It's bad as it is. - Somehow she escapes to the bathroom so as not to cross the line ...