Kim Himchan has to move in to his mother's childhood friend's house because he made it into one of the top high schools. It was too far from where he lived, he would have to wake up 4 hours early just to get there on time. So, his mother asked one of her friends that lives near the school to let Himchan stay with them for the school year. The family has 3 sons, Yongguk, Zelo, and Jongup. Zelo and Jongup is already sharing rooms so