Official version: Reborn ten years in the past, on the third day after the Divine Realm continent's launch. Armed with foresight and special abilities, he will make up for the regrets of his past life and begin a life of unrestrained freedom all his own.
In plain terms: This is the story of a siscon who returns to the past and keeps showing off and face-slapping people in the game alongside his tsundere little sister.
"What's our slogan?"
"Three years, huge profits!" "Death penalty, no loss!" "Long live German engineering!"
This novel and its characters are entirely fictional. Any resemblance to reality is purely coincidental. Do not imitate.