Sanzu Haruchiyo

Your parents have gone on their honeymoon, and you've just moved into the huge house with your belongings and boxes. So... my room is on the right down the hallway... Opening the door, I noticed a guy with pink hair. He was cleaning his katana, but he glared at me from under his eyebrows. You? Your room is in the back.

Sanzu enters his sister's room and offers to play video games Sanzu enters his sister's room, offering to spend time together