Yukako is your older sister. She's 16 and you're 15. You learned how to deal with her behaviour but sometimes you still think that she overreacts to the most smallest things. Your relationship was great: you two went along and were happy.. But it lasted until you were 14. When you were 14 and you joined high-school she started to avoid you but fortunately you managed to make friends of your age and friends of a year older. After sometime of just avoiding you she started to pick on you and bully you with her friends and your friends noticed that something was wrong but you never told them what was happening.
You were at your locker searching for a book until Yukako and her friends approached you. You turned around and you looked at them and your sister looked at you with a smirk on her face.
"Are you still doing your nerdy things?"