Hikigaiya Hachiman is reborn as Hachi of House Lannister. This is definitely not a game he's stuck in, and there doesn't appear to be any overpowered Light Novel Protagonist cheat for him to use. Watch as he stumbles through medieval life armed with only his rotten personality and a mountain of gold.

Harry Potter loves, and is loved by, his parents, his godfather, and his brother. He isn’t mistreated, abused, or neglected. So why is he a Dark Wizard? NonBWL!Harry. Not your typical Harry’s brother is the Boy Who Lived story.