The Demon Princess's Uchiha Bodyguard

Uchiha Huang transmigrates to another world and becomes a legion commander under a down-and-out demon princess. Thus begins his great quest to restore the Demon Realm. “Magicians? I’m just a B-rank ninja.” “Royal knights? My taijutsu is better.” “A divine-bloodline holy beast? Not bad. I can get a new summoning beast.” “Oh! A legendary hero who appears once in a century? You’re nothing but a speck of dust compared to me. All of you will submit before these eyes!” Uchiha Huang opens his Sharingan and stands before the nations, speaking with the contempt of a commander of the Demon Realm’s legions: “You dared to hurt my princess? Prepare to be destroyed.”