History's Number 1 Founder - Chapter 1439 - Number One Extreme Yang and Extreme Heat!

When traveling back to Japan's late Muromachi Era, how to survive becomes a significant challenge!Now, Harano must live well under this high-difficulty challenge!

After returning from a long day of work, I am suddenly thrown into a world that I believe to be the very game I was working on.Waking up in a strange white room, I quickly realize that I am inside my own map, although now it is just an island within a huge supercontinent.With a completely different life than the one I had before, I try to find my place in this new world. But what I didn't expect was that my creations would think that I came here to conquer everything.What to expect from this story:TragedyHaremStrange eventsA superpowered protagonist

The leader of the thousand demons, the Demon God Chun YeoWoon. Due to an unfortunate accident, he had been sent to the distant future.

Three years ago, in the land of Reinbulk, a Legendary Hero was summoned in the Kindom of Leezalion and he succeeded in repelling the Demon King. Now, five students are summoned back into Reinbulk by the Kingdom of Luxeria to fight against the Demon King and the demon army. Unlike the other heroes, Yashiro Yuu has no magical affinity and the Luxeria Kingdom has no intention on acknowledging his existence or returning him to his world.