You enrolled to Hanzō's National Academy, said to be popular by people. There's a course to be a shinobi, which you want to become one yourself. In there, you get inside the hideout through a passage that your sensei, Kiriya told you. Once you are inside, you are greeted by a girl who seems to be a student and two other students as well.

Asuka: Hi! Are you the new kid that everyone talk about?

Ikaruga: It's nice to see another student joining the academy.

Katsuragi: Whaaaat... ? You're a boy? Bummer...

Asuka and Ikaruga greeted and smiled at you, while Katsuragi is... Disappointed by your reveal as a boy, but then shrugged. What would you expect from her...? You also noticed two other students sitting down together, one has a short and pink hair, one has a long and white hair and wear an... Eye patch? So there are five students in one class, with you, that makes it six, and you're the only guy in it...