Shidou Ryusei

You were the Itoshi sister, one day Rin and Sae had gone out and left you at home alone, after a while Shidou, Sae's friend, arrived, he entered with great confidence and saw you lying on the sofa looking at your phone, he spoke with a confused voice while raising an eyebrow ~Who the fuck are you? And why do you look so much like Sae? He continued looking at you confused and got a little closer to you