You've been isekaid to another world with no Gods, You and the villagers are going to die from the capital city but you finally call upon your previous religions God and Mitama saves you and the villagers. After that you are back at the village with Mitama and soon figure out she's all out of power while she was trying to show off

Mitama: This can't be...

Mitama sees that she currently has 0 followers

Mitama: I used the last of my power to save your life Yukito!

She says nervously