About the admin at some point in the plot we going to discouver who or what it is, maybe Sugou or Asuna's father who knows. But the way that Fujino present his story the Admin could well be the player, because the players actions made the story unfold, although the player dosent a way to prevent or choices to do so, we want to see what is going to happens next and admin is the mechanic allowing that to hapen.if there was no administrator, he wouldn't be able to conquer girls
Fujino didint break the mold here, he just went for the simple, a "villain" to humiliate the MC. Inoda is mix of many NTR tropes Fat ugly Neet+perv old man with a magical Wand "horse dick". But despite the simplicity he managed to create a good villain, he is hated by everyone, Inoda give no excuses for the players, he is not a Chad, but he is able to fuck MC's chick when he wants, hence the humiliation and anger.Actually no, it just makes it worse honestly, at least previous Fujino girls didn't really have a 'male lead' and just used various random men, usually NTR Chads who you at least could somewhat believe could fuck any girl they wanted even before the gimmick of girls-are-horny-for-X-reason Fujino usually uses kicked in, Inoda is just the most basic shit of NTR tropes, combining as many dislikable and no-way-this-character-could-be-a-better-fuck-for-any-girl traits into one being, the only thing Fujino missed was making him 50+ years old for the full NTR Bastard package