https://www.mangago.me/read-manga/uruwashiki_shuen/
Maybe this? It's fun, if not.
https://www.mangago.me/read-manga/bl_of_the_dead/
Its a different series for each chap, the one ure looking for on the last chapter! ╮(￣▽￣)╭
Sounds so familiar but i have something similar but office settings https://www.mangago.me/read-manga/zombie_s_dick_is_a_bibibic/
YES IT IS!!! thank you so much ಥ‿ಥ
it's a bl manga, where they live in a zombie apocalypse and the mc n ml is a high schoolers I believe. What I remember is that the ending was that they turned into zombies after they declared their love for each other and people thought they were humans because their appearance was so human.
I think that's all I remember, I want to read it again, plz help me thank youu~