Iruma Starts with Escaping Yuri Rei

Nidhogg is the black dragon that swallowed the World Tree in the legend. Yes, I, Nidhogg, am its relative for who knows how many generations. Although there is a slight error, it is not a big problem. Relying on the blood of my ancestors, I have prospered in the devil world. But... What the hell is this human being in front of me? Oh no, I can blow away weak things like ghosts in one breath. It should be said that this woman... This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.