If It's for My Daughter, I'd Even Defeat a Demon Lord

If It's for My Daughter, I'd Even Defeat a Demon Lord is a Japanese light novel series. Dale is a highly skilled adventurer who has made quite a name for himself despite his youth. One day on a job deep in the forest, he comes across a little devil girl named Latina who has almost wasted away. Unable to just leave her there to die, Dale takes her home and becomes her adoptive father.