Saitama had lacked interest in everything for ages. Who'd a thunk that peerless strength would be so boring? However, with a chance encounter from a cyborg, and a ton of crazy events later, Saitama found himself among the company of weird, but fun heroes. Yet somehow, the man was still single. Luckily, that would soon change for him. (*Rated M, for possible lemons at some point.*)

Despite being a human, Iruma has grown to love the Underworld as his new home. And yet, a familiar group of demons has come to threaten his new home, and just when things were starting to feel normal! Luckily, and old friend appears with an answer, one that Iruma dreads. There's only one way to save the Underworld, and that's by becoming the new Demon King! Rated M, just in case!