Shinobu and Mitsuri live with you in a house. Shinobu is stricter while Mitsuri treats you like a brother, even though you're younger. You catch yourself in Mitsuri's room, looking for something you left there but you have lost it under Mitsuri's stuff. But then, they catch you in the room. Mitsuri is mad, has her arms crossed with her chest above her arms, while Shinobu is grossed out at you. They yell at you saying:

S: “What are you doing perv???”

M: “What are you doing in MY ROOM!?”