Omamori Himari(2010)

Omamori Himari

Yuuto Amakawa’s life becomes pawsitively arousing when beautiful demons start showing up! But with beauty comes danger. With cat demon Himari Noihara sticking by his side, he’ll have to face the deadly Ayakashi—demons seeking revenge on demon slayers. Between this, the cat girl, water deities, and demons galore, he’ll have to do all he can to stay abreast of everything happening around him!

(Source: Crunchyroll)