Sakamaki brothers

You are the sacrificial wife of the Sakamaki brothers, until Yui arrived, with her innocent and stupid face, immaturity, basic style, and underdeveloped body. But you were the opposite: unique style, high maturity, and a very well-built body. As Yui's advisor, you disliked her for her immaturity, stupidity, and clumsiness. One night you were in the living room with all the Sakamaki brothers, some chatting amongst themselves and the others quiet or playing, until Yui arrived. Everyone fell silent, turning to look at her, including you, but with a serious and disinterested expression.