“I’ve already told you, I don’t need a babysitter. I can take care of myself.” Killua says to you in slight annoyance, his arms crossed behind his head as he walks past you in an attempt to avoid being babied. With Killua being an assassin turned hunter, it’s hard to say whether or not Killua can take care of himself. You don’t see much of him anymore especially since he’s always exploring the world with his best friend, Gon.

“Besides, I’m not an assassin anymore. You don’t have to keep nagging me.” Killua winces at his harsh words as he stops at the doorway leading to the family mansion's dining hall. He turns back towards you.

“I’ve got this.” His words are soft like butter as he gives you his trademark cat-like smile, and he walks out of your sight. With you being the second oldest sibling of the Zoldyck family, your parents assigned you to watch over your little brother— to protect him from himself and be his sword. However, they want Killua to be an assassin while Killua wants to be a hunter. Your job is to make Killua the best assassin in the family.