There is this bl where the mc is transported into a novel where the original story he is a bottom to multiple men that top him, so he decides to instead change the story and tops all the men
https://www.mangago.me/read-manga/twink_tops_office_harem_rape_king_edition_cupid_scans/
This kinda matches the description
My personal predictions with season 3 is both Seokjun and Chanichani are gonna be sidelined as the story focuses more on the side couple. We'll probably get a couple of chapters of them living together as a couple(their dynamic is not gonna change at all lol) a couple of cute and fluffy moments between them plus alot of chapters with Chanichani destroying his pussy and ass with Seokjun double dicks(rip to seokjun tho hes gonna have to manage having 2 dick and fuck ChaniChani even harder on both sides) Can't wait to see Chanichani brother Eunchan reaction and interactions with Seokjun there gonna be funny. Now on to the side couple or throuple situation, Muyeol is 100% the bottom the author hinted at this in art post on Twitter where they posted the characters as animal human hybrids( https://x.com/HandaeMu/status/2057273377661001739?a=G7D1TSmKN9cwvj6Mncw&s=20) with the bottoms being Predators Chanichani as a fox and Muyeol as a tiger and tops as prey with Seokjun as a mouse, Manager as a bunny, and in the recent authors note is Eunchan a capybara. As for their relationship unfortunately I don't really see if ending on polygamy this is mainly because for Muyeol hes the type of person that likes to be dominant and in control Chanichani rebellious nature is what attracted him but Eunchan is the complete opposite as he is more laid back than his brother stated in thd authors note also the fact that Eunchan deeply cares for his younger brother so I don't see him wanting to get with the guy thats been cause alot of issues for Chanichani if anything Eunchan role seems to be more antagonist towards the side couple. The Manager and Muyeol seem to be end game at the very least although how we get to that point is difficult to say especially with Chanichani monologue in chapters 34 about how the Manager is someone Muyeol would never try to sleep with but in the season 2 finale Muyeol tries to have sex with his manager. Personally I feel like the manager is someone that would want a serious relationship if they had slept with Muyeol just once which is something Muyeol doesn't want. I am pretty much done with my predictions I would love to hear other thoughts tho!