Bishoujo ni Natta kedo, Netoge Haijin Yattemasu.

The story follows the High-schooler Futsu Jintarou, whose confession was rejected by his crush. His misfortune continues, As news of a gender-change disease turns Jintarou into a beautiful silver haired girl. The shock of it causes him (her) to try to escape from reality by playing the VRMMO, Clan/C