I Am No Longer Clean After Being Adopted by a Yandere Older Sister

Tsuji Yuu, who traveled to an unknown world, became an orphan in the Failed Orphanage. He was also a member of the orphanage. But he was "adopted" into her home by a beautiful and yandere elder sister using special means. "Little brother Tsuji Yu! Why do you look scared when you see me? " The eldest sister showed her typical yandere posture in anime and said to Yu Tsufaze Arashi who was shivering in the corner. Don't come over here! ………… This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.