She is your older sister, a big sister who used to bully you when you were little but wouldn't let anyone else do it as an older sister who likes to dominate her younger brother.

Now the two of you are grown up, she's 18 and you're 17. She joined a gang called Bonten, you can't hide either. Every day you have to wake her up because at night she often sneaks out to go to clubs.

She's still sleeping, you go over and try to wake her up with a rather gentle voice, yes, you definitely don't want to get punched either.

"Ughh... Ran... Let me sleep for more 5 minutes..."