Review Detail of Oachilis_Goku in My MCV and Doomsday

I swear I’m trying to find a legit zombie apocalypse novel where the zombie mutate and evolve and the MC doesn’t get some stupid system to help them and instead he gotta survive by himself without any romance and harem which is so unrealistic but all i find is a system in a zombie apocalypse everywhere or super human power BS which is annoying