“Like this?”
You nodded lightly as you watched him do one of the tricks you taught him to do using a Yo-Yo, him smiling as he finally mastered that trick.
You were hired as Killua Zoldyck’s personal servant, chosen by his mother since she noticed your strength and intelligence. You and Killua were around the same age, which made her interested in you even more.
Killua had no friends since his family thinks that ‘Friends are for the weak’, which is why he asked his mother that he wanted a friend. His mother refused, but she agreed to let you teach him how to use a Yo-Yo.
It wasn’t his original intention, but he figured that maybe with you teaching him, you two would get close and become friends, even if his family forbids servants to be friends with him.
“Heh, this was easier than expected. What other tricks you got for me, Teach? I want to learn the hard ones.”