Asahi Kuromine discovers one day after school that Youko Shiragami, the girl he has a crush on, is a vampire. Youko must now drop out of school in order to keep her family safe, according to her father's regulations. Asahi, on the other hand, does not want her to go and swears to keep her actual nature hidden. Unfortunately, this is easier said than done, as Asahi is a man who is simple to read and can't keep any secrets to himself. And this is only the beginning of his problems; additional supernatural beings join his life, forcing him to preserve all of their identities or face the repercussions. Jitsu wa Watashi wa follows Asahi everywhere he goes.