There's actually something like that! Although I don't remember the name.
Its about this guy who thinks he's a mob character in the class but ends up becoming boyfriends with the coolest guy in class.
Mobyama Aji to Mobtani Crou no Kareinaru Nichijou e no Chouse is about two mobs in a class who decide that the only way to stop being side characters is to start dating each other, its pretty funny but the characters are purposely cliche
Low-key sounds interesting plz drop the name
There actuellement à mahwa with the same style. But the protagonist who see all the BL situations is a woman working. It’s very fun too.
Sorry if église us trash
It is ok your English is fine. I think that sounds interesting as well if you can put the name.
Found it! Tonari no Class no Katou-kun
Or Ushiro no Seki no Katou-kun
July Found by Chance is a really nice webtoon about a girl who learns she's an extra
"Seikaku Kuzu De Nani Ga Warui" and the rest of the "Kuzu" series is one of my favourites. He's not specifically a mob chara, but he kinda sees himself as one especially since the guy that likes him is the popular kid.
Other than that, if you are okay with just a smut series, "Sex with the Love Interest! But I'm an NPC!" is about a mob character getting together with one of the love interests of a dating sim.
There's another one on MRM hahaha and the mob character doesn't even have a face. He has a big A in his head.
I have this list which is all super hilarious mangas with this trope!!
https://www.mangago.zone/home/mangalist/2460619/
https://www.mangago.zone/read-manga/i_may_be_a_mob_but_because_my_favorite_is_here_everyday_is_fun/
https://www.mangago.zone/read-manga/i_am_troubled_that_my_fiance_is_a_villain/
https://www.mangago.zone/read-manga/mob_nanoni_makikomarete_imasu_ouji_no_ibukuro_wo_tsukandarashi/
https://www.mangago.zone/read-manga/trapped_in_a_cursed_game_as_an_npc/
https://www.mangago.zone/read-manga/isekai_tensei_ore_ga_otome_ge_de_kyuuseishu/
Ah so many links getting dropped definitely gonna check all these out after finals.
Lolllll just get back from my work and seeing all of these. Thanks nice peoplee <33 may you all have good dayyy
Anybody have suggestion something similar with this troupe? Where the MC thinking they are only a mob character in their world and later on have full blown love story of their own. I don't care about the genre and age rating. Thank you in advance <33