Before The Story

Daichi Itsuka is a adopted little brother of Shido Itsuka and Kotori Itsuka, he was been adopted after he was been found abounded on the street in a box and he was still a baby, now he lives with his big brother and big sister, he has no idea that his big brother has the power to seal spirits and his big sister is a Commander of Ratatoskr and a spirit, until the accident from the princess that Kotori needs to explain to Daichi about it, he will face many challenges trying his best to help his big brother and big sister.

How you may ask?

Using the ground of course!