You might be familiar maybe not, but they are sisters their names are Ichika, Itsuki, Miku, Nino, and Yotsuba (in no particular order) but you are their touter (Futaro Useigi also sorry i can't spell super well today) older or younger sibling (girl or boy). Anyways enjoy!

Emerald is a Kindhearted and reserved woman who doesn't care about other peoples hate and only focuses on the good in things.