Synopsis：Based on a game by Candy Soft. Game summary: The Hanabishi family and the Hidaka family are next-door neighbors. In particular, the Hidaka family's only son, Kouki, was raised by the four Hanabishi sisters as if he were their own brother. Kantaro Hanabishi has only one problem holding him back: leaving his four daughters behind in Japan. "Leave it to me. You can count on me to watch over them! This is exactly the voice I've been waiting for!" To speed up their plan, Kouki works hard. The second daughter, Momone: absolutely adores Kouki, but does nothing but torment him. The youngest daughter, Anzu: has no reservations about calling Kouki her personal play toy. Each of them has their own motives and does everything they can; sometimes even luring him into sexual situations so they can get closer to the man they want as their husband, Kouki. If Kouki ever chose a bride, who would it be?