Stranded in the Apocalypse, I Unlocked Flying Thunder God from the Start

(Apocalypse System. The protagonist is a normal person, not a cold-blooded psychopath. Don’t read if that’s not your thing.) (So many elements, feel free to join in!) I land right in the middle of a zombie horde from the start, and the System compensates me with the Flying Thunder God Technique? Zhang Kuo, a hot-blooded young man who died while helping someone in need, unexpectedly binds himself to a System. After being reborn, he is dropped into a parallel world overrun by zombies. To find the older sister he once depended on, he sets off on a journey north. But who could have guessed that the System would keep malfunctioning, eventually forcing him into exile in the world of Boonie Bears to chop wood for ten years… (This book is complete. The sequel is in the works, so stay tuned for The Wonderful Adventures of Zhi Qiang.)