Toaru Majutsu no Index SS - Volume 2, Chapter 13: The Accuracy of Their Collective Fortunes. The Fourth Friday of August.

In the age of the Great Liang Dynasty, the lives of the people were made convenient with steam-powered machines that run on a fuel named Violetstream Gold. Chang Geng, who lived in a small countryside village, shared a distant relationship with his mother while his stepfather was away most of the year round, and the only people he was close to were two little kids, the village teacher, and his yi fu – adoptive father. But his life was flipped upside down one day following the barbaric Man tribes’ invasion, and it turned out that his entire identity had been an illusion – not only was Chang Geng himself not the country boy he thought he was, but also his mother, his teacher, and even his beloved yi fu…

[Warning: Mature Content]Chuck was a 20-year-old professional body pillow reviewer who spent his days testing anime waifu pillows for online stores. His life was pathetic, lonely, and consisted mainly of rating the softness of fictional girlfriends.Then truck-kun struck.One evening while walking home from another humiliating day of pillow fondling, Chuck got obliterated by a speeding delivery truck. Instead of meeting his maker, he woke up as a newborn in a parallel world... a very different one from the one he knew. A second chance awaited, and he looks to make good use of it.However, he runs into the impossible; Chuck finds himself thrust into a society of proud lioness princesses, fierce wolf ladies, and noble panther heiresses, daughters of warlords.In hindsight, all those years of pathetic pillow fondling had been preparing him for this moment—a world where his wildest harem dreams weren't just possible, they were inevitable.

What is a young teacher to do when stuck with four cute little students in a beast apocalypse?. It's obvious, raise himself four little wives!!Well it's not his fault after all. They are the ones initiating it. As far as he's concerned, he's the victim of the story.“These four little devils, they are definitely after my back!”

This novel is also known as Gu Daoist Master

Humans are clever in tens of thousands of ways, Gu are the true refined essences of Heaven and Earth.

The Three Temples are unrighteous, the demon is reborn.

Former days are but an old dream, an identical name is made anew.

A story of a time traveler who keeps on being reborn.

A unique world that grows, cultivates, and uses Gu.

The Spring and Autumn Cicada, the Venomous Moonlight Gu, the Wine Insect, All-Encompassing Golden Light Insect, Slender Black Hair Gu, Gu of Hope…

And a great demon of the world that does exactly as his heart pleases!

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*Gu (蛊) referred to poisonous insects in various cultures in South China while in folklore Gu spirits could transform into all kinds of species.

- Description from Novelupdates