Since moving in with his siblings, the freshman hasn't had a peaceful day. From the fact that Suzuki's lustful sister-in-law always dresses sexy and stimulates his desire every time she teaches him, to the many times she accidentally catches sex between the two siblings. In such an environment, and at an age with extremely strong desires, it is understandable that sexual images always appear in his mind. When his endurance exceeded his limit and he was often sexually propositioned by his older sister, his desire broke out very strongly - as a result, an incestuous love affair happened between the two sisters, which was not possible. no way to avoid it.