hmm not exactly the same vibe but I definitely think you'll enjoy this
https://www.mangago.zone/read-manga/i_became_an_evolving_space_monster/
https://www.mangago.zone/read-manga/murim_login/
https://www.mangago.zone/read-manga/the_dark_mage_s_return_to_enlistment/
https://www.mangago.zone/read-manga/the_return_of_the_crazy_demon/
https://www.mangago.zone/read-manga/omniscient_reader_s_viewpoint/
https://www.mangago.zone/read-manga/noblesse/
https://www.mangago.zone/read-manga/lookism/
https://www.mangago.zone/read-manga/eleceed/ (strong hints of romance but i just skip those chapters)
alright, thank you very much you bothヾ(☆▽☆)
stories with vibes like the return of mount sect or the s-classes that i raised... and of course, with no romance hinted.