Netoge no Seibetsu wa Daitai Mitame de Damasareru
Yuuki Ichinose is unable to make friends when he is in high school, especially that he can't interact with his delinquent classmate Kaga-Kun,He plays an online RPG game and interacts with a female character named Aki-chan but it turns out Aki-chan is really Kaga-kun who is forced by his big sister to play the game with the character she set up for him in order to learn how to mingle and communicate.