Kazoku: Mother and Sisters' Cries

A visual novel/eroge about a protagonist whose father remarries, creating a blended family with three new female housemates: an older sister (Nagisa), a younger sister (Fuuka), and a mother (Otoha). After discovering his father's infidelity, the protagonist abandons his restraint and decides to sexually dominate and corrupt his new family members, pursuing them in various scenarios throughout the house. The game focuses on sexual conquest, corruption, and the psychological transformation of the family through coerced intimacy.