Akunin-zura Shita B-kyuu Boukensha: Shujinkou to Sono Osananajimitachi no Papa ni Naru

In his past life, his favorite game was the RPG Bright Fantasy . Reincarnated as a character in the game world, Gray lived peacefully as an adventurer. One day, he rescued a boy from some street thugs in the city. The boy and his childhood friends turns out to be the protagonist of the game's story.