Sister A family rule where a good sister likes me so much that she can have sex with her sisters at any time. Yutomaki.
I have two different sisters. The first daughter who is soft and firm. She is the second daughter of a lonesome man who knows people. They both would not love me, and perhaps because of that, they always fought against me and became a training ground. "My family is always close..." Because of the family rules, I always love my sisters more than twice as much.