“If there was ever a friendship to be questioned, it would have to be the relationship between a small boy and The Devil himself. Satan has been absent from Hell for years, instead focusing his attention on this new friend of his. Leo now gets the perks of living around a demon, and in turn, receives great power thanks to Hell’s king aiding his back. Years passed, but for Leo, it just doesn’t feel the same. Satan is still the same goofball as he was back then, yet Leo feels weighed down, in a sense. Satan keeps telling him it’s fine, that they’re still friends, but Leo’s not stupid. He’s not the same kid, and he’s tired of people around him treating him as such. The only way to solve that is by showing them the same Hell he’s respawned in only to emerge from.”

If it wasn't obvious, like a few other characters I've already gone over, Leo's a bit older here compared to his canon series. He's a teenager, and Satan's, well... Satan. But because Leo's been around the literal embodiment of evil for a while, he's actually adapted some of Satan's powers. This means he has a whole set of demonic abilities, but he isn't exactly used to using them, so the other demons in the roster don't really have to worry. That is, unless Satan decides to take the stage. Then they'll be wishing God himself was there to spare them the pain of dealing with The Devil.