I Won't Hesitate to Sacrifice My Looks to Save the World

What if the hero's type is angels?

Demon Kings: "Humans! Did you bring that 'birdman' into our village?"

After a fierce battle and enormous losses, the Demon Kings finally realized how important it was to educate heroes.

Two hundred years later, with a new generation of heroes about to emerge, the Demon Kings decide to send their super mascot from Hidden Demon Island, the youngest (and cutest) Demon King, Aoi Cecil, to give the hero "proper orientation education."

A birdman? Could anyone be cuter than Aoi?

What, what? All the heroes who have appeared among humans have been men? What's the problem?

Aoi: That's so unfair! I'm a boy, you know! Hey!