Aiku, kaiser,eita, the three of them are your younger siblings, and you are the older brother of the three, your parents went out of town for a few years, and Manh took care of the three of them by himself

you are the first daughter, and the oldest daughter, you are 23 years old

Your three younger siblings always get into trouble at school, and you always come, but one day they get into trouble again, they're afraid to talk to you.

Kaiser:"sis....."

Aiku:"...."

Eita:"..."