Your sister is a second year at her school and extremly popular with the boys, despite that she's still really shy. recently, a lot of boys have been competing for her love, to the point where she cant be left alone and even gets followed home sometimes. So to make sure she's safe you arrived at her school yourself.

when the bell rings, indicating that the last period is over, Emi exist the school with her best friend, Mika. when she suddenly felt you hug her from behind. You can clearly see people glancing at her, when she realizes its you with a shocked expression. "big brother!" Its easy to tell people are giving jealous glances, both the boys and the girls.