I Was Afraid Of The Doomsday, So I Practiced Ghost Back In Three Months

[Decisive killing + aesthetics of violence + Yakuza style + big muscle tyrant + System + no hoarding + ultimate personal force + cool writing]
Nuclear sewage pours back, sea beasts mutate, and the end is coming.
Han Zheng, who was struggling to survive in the sea of ​​​​blood in the mountain of corpses and was at the end of his rope, was unexpectedly reborn a year ago and activated the Yidao system.
He knew that there were only three months left before the end.
He started exercising crazily every day, and all the relatives and friends around him thought there was something wrong with his head.
A month later, Han Zheng announced online that he had broken 9 seconds in 100-meter speed. Everyone thought he was sensationalizing.
Two months later, Han Zheng posted a video of deadlifting 800kg with one hand. Everyone thought he was crazy and was deliberately faking it.
……
Three months later.
The end is coming.
When I saw this young man with a bare upper body and a sinister face on his back, punching out the ten-meter-tall lobster monster that ignored bullets in order to save a little girl, the whole world exploded in an instant!
(This book is also known as "Because I was afraid of the apocalypse, I developed a ghost back in three months", "Pulling iron for a hundred days, and the gods will kill you!", "Three months of fitness, have you become a one-punch superman?", "The gods came to the world, and I was beaten to pieces by me after three months of fitness!")