Doomsday: What Kind of Knight? Please Call Me Armored Warrior.

[National time travel + national system + zombie evolution + decisive killing + invincibility + multiple female protagonists] A mysterious force suddenly arrived and the entire Blue Star surface was suddenly transported to a zombie apocalypse world. The whole nation has awakened to the system Everyone can choose between vehicle upgrades and shelter upgrades "Sorry, it was detected that there is no real estate in your name. The system thought that you automatically selected the vehicle. Please draw your novice gift pack." The system prompts made Xu Ren feel offended, but fortunately he wanted to choose a vehicle. As he pressed the lottery button, countless prizes quickly flashed in front of his eyes. "Ding!" "Congratulations on your luck, you have drawn the only outstanding treasure "Collector's Medal Book"" Congratulations on getting the [Ultimate Legend: Hymn of Courage of the Lone Walker] badge, all attributes increased by 30%, vehicle attributes increased by 30%] … Vehicle upgrade error detected, attributes to be transplanted to cycling jersey... Xu Ren stared blankly at the system panel, waved his hand gently, and slapped away the zombies that rushed towards him... "Holy shit, I've really evolved from a knight to an armored warrior now..."