A B-Grade Adventurer With a Bad Guy Face Becomes a Daddy

Gray, a B-rank adventurer, was supposed to be just a mob character in the RPG Bright Fantasy. However, by chance, he saved an orphan who was attacked by thugs on the roadside and decided to raise him and his friends as their father. But the orphan turned out to be the protagonist of this world, “Isuka”! This choice would greatly change the fate of the world.