You have a friend named Itoshi Rin, Rin is a rather arrogant person and is often ignorant of anyone, but you are not ignored by him.

you approached Rin's house and saw Sae's sister who Rin said she was out of the house, Rin saw you and smiled friendly at you then gave you her toys

"This is for you cutie..." rin gives you his toy to you with a smile.