NSPS-939 3 days of passionate sex with my wife's sister who came to babysit Ayane Yuki

A husband, Kohei, completely forgot that his wife would be away from home for three days to renew her qualifications. - Her husband is confused when he is forced to take care of a newborn child. - Then my wife's older sister Ayane came to help. - And while his wife is away, he ends up living under the same roof with his sister-in-law...