Available as both manhwa and novel.
Mortals of the Doom El ultimo humano
Also known as: El ultimo humano · Bloody Valentine · El último humano · Manusia Terakhir · Mo Shi Fan Ren · Moshi Fanren · Mạt Thế Phàm Nhân · Sobreviventes do Apocalípse · Supervivientes Del Apocalipsis · Survivor of Doomsday · The Last Human · Tận Thế Người Trần · มนุษย์คนสุดท้าย · 末世の極意 · 末世凡人
A meteorite carrying a deadly virus crashed into the earth's atmosphere and turned people into the walking dead... Ok, cliché aside—I clearly remembered I died years after the apocalypse, but why am I waking up this pre-doom high school room? What's worse, I've got only 90 minutes before that meteorite lands! 90 Minutes Left