実は私は

Asahi Kuromine is a high schooler physically incapable of hiding what he is thinking, since his face gives away every secret. When he works up the nerve to confess to his crush Youko Shiragami, he catches her with wings out and learns she is a vampire allowed to attend school only as long as no one finds out. Asahi promises to keep her secret, and quickly discovers that several other classmates are hiding identities of their own.