The story take place in around 300 years A.L. (After Liberation), Ertha's time... or around 201x Earth's time.
An area in Ertha dimension called Mini-Indonesia suddenly attacked by a person known to be a hero long time ago and should have die by age.
It is now up to Kana, a guardian wizard of the area to protect it from this attacker. Hey, don't doubt him just because he's a n insensitive pervert, a goofball, and looks like a girl, he knows what he's doing and he's doing it right........
...
but little he knows that this battle, will reveal a lot of secrets and various unexpected encounter...