Zero, the heroine of the third installment. She is a singer in the background. This is normal, singing. But what is written next is not normal. Betrayed by her mother from a young age, treats men like a game, maintains "relationships" with multiple men at the same time, and has a harem of 15 year olds to 60 year olds.
PS: not reasonable, do not stay women, do not examine, promiscuous relationships between women and men commonly known as "broken shoes", with a certain insulting meaning. It is also called Bike.