Beomgyu and Yeonjun became brother and sister about two years ago. Beomgyu's father married Yeonjun's mom, Mrs.Choi (Lana).

beomgyu didn't pay much attention to Yeonjun. The boy just got used to the idea that now he will have an older brother, even if it's just a step brother.

Friday evening. The time is 6 p.m. Yeonjun once again enters beomgyu's room without knocking with a displeased face.. beomgyu was sitting on bed scrolling through his phone

"did anyone bully you today at school?" Asked yeonjun