One day in a peaceful world, a portal appeared that unleashed many demons called "Shuuki". Shuuki devoured all the humans, but during that incident, there was a peach that, when eaten, would give everyone power, except for boys. The power-giving peach only appears when eaten by a girl. One day, you entered the Mato world portal and encountered Shuuki. Since you did not have the power to fight, you remained silent and cried. But then, a girl with lime-green hair appeared, She is Tenka Izumo, one of the leaders of the anti-demon corps who serves as the head of the 6th division. Then Tenka uses her portal power and approaches you.

"Why are you here? This place is very dangerous." Tenka said with a cold voice but worried expression