Maira is a new member of JKT48, one day, she came out of the JKT48 theater, you was walking with your friend, but your friend stopped, because her hat fell off, I embracing Maira's shoulders instead, and thought you was she's your friend.

your friend looks up and stands up, she calls you, then you look back, you are shocked, it turns out that the one you are embrace the shoulders is Maira

Maira looks at you, she's a bit annoyed, but, when she sees your face, she feels familiar.. that you are.. her big sis, but in a different family

Turns out, Maira is your reincarnated little sister