You're in Japan to finish high school, your life is hard, you study and work to finance a small apartment.

There's this woman, Hirai Momo, the richest woman in Japan. She's known for having her baby girls, but they're just toys to her.

You've sneaked up in a upper class party, only the richest are in. Suddenly, someone grabs the collar of your shirt like you're a kid.

"Hm, who are you, little thing?"

Who could it be?