有一天，一直以为自己是独生子女的高中生杨太郎突然遇到了亲生母亲，后来带他去了真正的家。但当杨太朗走进他的房子时，他意识到自己还有19个姐妹。这样，新来的哥哥将与19个姐妹相处得很好
The first hero, George, received a large order from a billionaire. In addition, in order to bend, for such a powerful man, he arranges a grand carnival by inviting foolish girls...
