Ryôta Satô was reincarnated to another world, but he was burdened which his level is fixed to 1 in another world. Although he wasn't able to raise his level, he had a skill to create a cheat-like item that shouldn't exist from monsters.

Natsuki Subaru, an ordinary high school student, is on his way home from the convenience store when he finds himself transported to another world. As he's lost and confused in a new world where he doesn't even know left from right, the only person to reach out to him was a beautiful girl with silver hair. Determined to repay her somehow for saving him from his own despair, Subaru agrees to help the girl find something she's looking for.