Superheroes are not the only ones that wear a mask. Ayaka is 21 years old and very self-conscious about her scarred body, feeling she has no place anywhere. She reinvents herself as "Nina": a stylish, sophisticated, and successful girl, with great influence in social media. After spending years as a shut-in, she finally gathers courage to start university with her new identity, believing she will be able to have a normal life this way. But her negative thoughts wont be the only villains she will have to face, because she meets a team of boys that also wear masks to hide their identities, but with a sightly different purpose...