[Mosaic removal] An honor student, Himari, and a truant sister, Hinako, who is unfamiliar with school. The two lived peacefully with her mother and her wealthy stepfather.However, while her mother is in the hospital for childbirth, the house becomes a lustful space dominated by her father-in-law...Hinako's inferiority complex is skillfully exploited by her words and vaginal cum shot.Sexual intercourse using Himari's kindness for her sister... At some point, the two of them became sex slaves competing for her father-in-law's cock.My mind and body are dominated so much that I can conceive while enjoying which one will get pregnant first.