Urbis Natatilius

Umi- strict adherer to the rules, Zumi brushes them aside like dust. Twins that are polar opposites in almost everything in life. Until love strikes for Zumi. With her love, comes Umi's- only in a an unexpected way.

The two most powerful demons in Urbis, the largest floating city on the planet, Horboris and Halabela. Horboris has his sights on Zumi, making her his and fathering her children, meanwhile his sister, gunning for Umi- an anti-demon guardsman, convinced demons are sin itself.