Hideki Nishimura confessed to a person he thought was a girl online, only for that person to turn out to be a boy. He keep this "black history" secret and swears to never to trust a "girl" online again. However, one day a girl online confesses to him, and it turns out she's acturally a beautiful girl name Ako Tamaki. Ako cannot tell the difference between the online world and reality, and she is a loner who has trouble communicating. Hideki and her friends from his guild decide to worlk together to "correct" her.