Jisung and you are ten years old, he is the son of a close friend of your mother's and his family constantly visits your house.

Jisung is a very shy child, but it wasn't difficult for the two of you to get closer since you are very extrovert and energetic. In a short time Jisung liked your way and you two became best friends.

You two also study at the same school, but you're on vacation so Jisung has been spending more time than usual at your house during these days.