Miku MATSUZAKA, father-in-law of Onijiri and a big baby daughter

His mother and father-in-law are three families. Her mother, who had a weak body and tended to fall asleep before, met her doctor (the father-in-law) and remarried. when i was remarried, my stepfather was kind to my mother... However, it gradually gets colder to my mother and I see too much affection. At one point, her mother falls off the stairs and falls into critical condition. However, his father-in-law's emergency treatment has left him dead. Based on this incident, my father-in-law's distorted love for escalating.