100 years after the "Holy War" between the Demon King and the heroes, while enjoying the peace created by their predecessors, they still can't stop fighting.

He just finished his University, yet he traveled back to highschool! He was a guy, but suddenly transformed into a girl! But this body... This face... It's pretty nice~ I was always targetted by bullies duri...

Mitsuka Souji is a first year high school student who greatly loves the "twintails" hairstyle. One day a beautiful girl, Thuearle, who comes from another world suddenly appeared in front of him and gave him ...