Reborn As A Ghost: Time To Build My Undead Army! - Chapter 9

This is a story about the protagonist getting the system, going crazy in the biochemical apocalypse, producing aircraft and tanks, destroying zombies, saving good people and killing bad people.

- Description from novelbuddy

Pain, Pain, Go Away is a novel by Sugaru Miaki, also known as Fafoo, author of Starting Over and Three Days of Happiness. Unlike Miaki’s previous two books, Pain, Pain, Go Away is not a rewrite of any story posted to 2ch, but an entirely original one.

The plot involves a young man who becomes a killer (by accident) – but his victim has the power of “postponement,” temporarily delaying her death.

Her wedding had also become her funeral.
Her stepsister and her fianc�� had gotten together at some point in time. It turned out that they had been the ones who had done it all along. She had been disfigured, raped, plagiarized, and her father had died in an accident.. All of this.. It turned out that they were the ones who had done it all.
She really regretted trusting the wrong person and misunderstanding the person who loved her... ...
After being reborn, she returned to her high school days.
She became a Straight-a student, won a grand prize, fought against the stepsister, confessed to the scumbag, and got lost. Her sister's lies were all broken. Faced with the shadow of rape, she came to recruit them. The chicken was braised with mushrooms, and a grand party was held. She made a name for herself. She was strong. She opened a shop, bought land, and earned a lot of money to be a boss But in front of him, she was a little woman that he doted on.
"Hei di, madam ran out again. She said she wanted to earn a lot of money to buy milk powder. "
Blue veins popped up on the man's forehead. "Here it comes again. Bring her back and open a bank for her. "

[This is your typical story where there is a System of unknown origin given to mankind, and the existence of Towers, Dungeons, and Constellations, the known or unknown ‘Gods and Demons’ of humanity’s collection of myths.]

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— Ding!

[Astronomical Event!]

An event called 'Emergence of Races' struck the human world where the planet Earth was stretched out like dough causing it to become seven times its original diameter.

Various Towers and Dungeons sprouted out of nowhere that caused an earthquake that broke the seismic scale.

Billions of humans died in the process that crumbled human society in an instant.

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And just like that, Russell Moon reincarnated in the world of his-considered-failure unpublished novel [The Forgotten Swordsman of Ruined Star], sixteen (16) years before the beginning of the ‘Main Story’ which was set forty (40) years after the Emergence of Races.

And due to that very reason, the existence of 'Untouched and Unknown elements' came back to bite him!

'Why did I write that way?'

Russell Moon lamented.