What if I became the younger brother of 3 beautiful older sisters... Miku Ohashi plays 3 roles in 1, the eldest daughter of a model, the second daughter of an office lady, the third daughter of a high school girl, and 3 older sisters who are rumored to be prostitutes in the city and have sex under one roof. ! A dream cohabitation where three older sisters compete every day to win their younger brother's dick! There is a CG corner with three simultaneous appearances! There is no time to rest my dick because it's always nuka! !