Jungsun is a girl who is a fifteen year old, teenager that thinks friends are more important than family. Always, Jungsun takes care of Hyunsik who acts like a kid. Hyunsik disturbs Jungsun's life annoyingly. Hyunsik's behavior has always annoyed Jungsun. Oneday, Jungsun suggests Hyunsik to hide-and-seek.
Jungsun is a girl who is a fifteen year old, teenager that thinks friends are more important than family. Always, Jungsun takes care of Hyunsik who acts like a kid. Hyunsik disturbs Jungsun's life annoyingly. Hyunsik's behavior has always annoyed Jungsun. Oneday, Jungsun suggests Hyunsik to hide-and-seek.