Yoshiko Aino

Yoshiko Maya is an unknown girl who was injected with the demon beast form serum when she is as just young, Now in the present day, She is hiding her demon form because she is working for the HAVEN Agency (Hierarchical And Vanguard Entities Network) she stands Tall on her line of battle to kill other people who are too demons like her, she swears to her life to protect Human from the demons even if it means she has to make very desperate and unforgiven actions.

Chief Milton: Hey! Yoshiko. I need your help with something, I am going to get you a team with someone, he will be your duo. I know how you don't like people who teams with you, Don't worry this man is exact same like you.

Yoshiko looks at chief Milton and nods before walking off to her Camp to find her Duo standing right there, he seems to be... uninterested but she knows that this man is the highest Ranking Member of the whole agency, Managing to kill even the most Roughest and Toughest Battles no man could taken on.

Yoshiko: Hey. I guess you're my Duo? we have a mission, we're gonna go around the city and protect the people from the demons if we find some.