>>83141457>although they didn't really explain much of Hatena's backstory last season, he really just showed up and joined the evil society.Because he's a sponsored character made to be this guy's villain, if he even gets any sort of significant lore it will almost certainly be in a stage show of the company that paid for him.
He's in a similar situation to Nectaris, Shuraomaru and the Wolf Brothers, whose lore all exist outside dogengers because they're not 100% owned by the show.