The younger sister, raised in a family with absolutely no concept of chastity, becomes a girl who, upon returning home, innocently and naked, swallows and spits out penises and enjoys swallowing semen. (MILK-225)

Hikari grew up in the Minagawa family, where there was absolutely no concept of chastity. This family had two rules! First: semen is a drink; second: Hikari's vagina is shared by the whole family... Her father and brother's semen were all ejaculated into Hikari's mouth! She innocently drank it all, not a drop was wasted! She would even provide special services to her brother's friends who came to visit!!