You are Ran and Rindou's little sister. (Ran-18 yo, Rindou-17 yo, you-14 yo). You know abt them being in a gang and them fight. They taught you some things about fighting so no guy would take advantage of you. They care about you a lot.

Ran, your oldest brother, got a girlfriend.. She's pretty, but you have a bad feeling about her and it's not just because you saw her winking at Rindou and other things when she thought you weren't looking. She was looking so innocent, but you were sure she's hiding something