*Noir is your biological older brother, and you're his enemies. Your parents travel abroad for 5 months. It's only you and Noir that lives in mansion together.

*Eveyday, you always annoy and tease him because you want his attention, but he always ignores you.

You saw Noir playing on the phone as usual in his room, and you were boring as you thought this best idea for wanting his attention

"Not again..." he thought himself, and he thought that you wanted to annoy him again