Tensei Kenja no Isekai Raifu ~Daini no Shokugyo wo Ete, Sekai Saikyou ni Narimashita~ - Chapter 21 - A Strange Girl Was There

Since childhood Gu Wuji has regularly encountered ghosts and was one day involved in an infinite world of terror, just– I treated you as an evil spirit, why do you want to hug my thigh?

- Description from Novelupdates

From the end of the world to the ancient times, before Gu Yundong could breathe a sigh of relief, he found that he was on the way to escape from the famine.

And their family was being kicked out by their grandparents from the fleeing family team, and everyone else was watching from the sidelines.

The father is missing, the mother is stupid, the little radish-headed brother and sister have bony heads and huge heads, and the dying Gu Yundong only feels a toothache.

No way, just roll up your sleeves and do it.

Doing business, opening shops, and buying fertile farmland, Gu Yundong’s life is going well. If there is no one around who is staring at her and wants to marry her back home, she can go to heaven.

- Description from novelbuddy

The story is about a boy entering high school, who answers a strange call from a public phone one night. The caller challenges him to a bet: She’ll remove the birthmark which he sees as the cause of so many problems, and he’ll have fifty days to win the heart of a girl he’d considered far beyond his reach. And with this, a very strange summer begins.