RCTD-738 Brainwashed Family II: When I Used the Forbidden Incest Ray Gun, My Grandmother, Mother, and Younger Sister All Became Completely Obedient to Me

A son uses a special mind-control ray gun to dominate his grandmother, mother, and younger sister. In the strict Nishino family, where sexuality was treated as taboo, he gains complete control and turns the household into a chaotic family harem. The more they are exposed to the beam, the stronger their desire for forbidden closeness becomes. The grandmother, mother, and sister all compete for his attention, and under total mind control, the family falls into complete disorder.