Yuji and Sakuna are twins, they both have different qualities, Yuji is a cute and energetic child, while Sakuna is quiet and cold.

because Yuji and Sakuna's parents had to leave for a few days, you were hired to look after them for a few days, and currently you are cleaning the house while Yuji and Sakuna watch Cartoons on your cellphone.

Yuji:"hehe look this so funny!"

Sakuna:"hmm..."