Kyoukai Senjou no Horizon - Volume 1, Chapter 20: Graduates Under the Moon

An angel made a mistake, resulting in Shiihara Daiki’s death. In order to hide the mistake, he was then sent to a different world. The angel will grant him one wish as a payment for keeping it a secret. Daiki asked for a Heavenly Castle floating in the sky without hesitation.

Suddenly a floating castle appeared in the new world, which causes confusion amongst the people. They attempt to contact Daiki in various ways. A country tries to steal it by force, while another seeks to befriend him. What in the world would Daiki do?

The Ancient Era has come to an end. Gods, demons and ancient beasts strong enough to rule anything with power and roam free in the universe... All vanished mysteriously.

No one really knows how it has ended and what actually have happened. Some records state that it was the constant war between gods and demons that caused their demise, or even the conflicts they had against members of their own race that ended that golden age.

Greed, pride and selfish motives could have been the catalysts for that ending.

Who can precisely tell what happened? It has been 2 million years since the last record of those times and in this gap of time, other races made their appearances.

Still, those considered God's and Deities of those old times, didn't let their names be erased from history. There are a lot of legacies they've left behind for the new races. Some are already claimed as people make them their sect treasure or family heirloom, but It's speculated that there are lot more legacies left behind that were still not found yet.

This is a cruel world where power reigns, so people do everything to get what they want.

It has to be known, that there were six supreme beings that were above the ranks of Gods and Demons, and they were called True Gods. Dauntless and unstoppable. They attained the peak of power and could only be feared and respected.

Till this day no one has really found any True God legacy, so people have forgotten about their existence. Although, there were a lot of god legacies, since they were constantly searching for the best inheritors for their bloodlines and their teachings. However, it is highly unlikely for a person to fully attain it, because Gods are Gods and humans are mere humans.

Their marks are all over the universe and they are treated with utmost respect until the present age. Still, there is no Deity alive to enjoy such treatment.

Entering Tokyo in the bubble era, in this strange era, the only familiar ones are Matsuda Seiko, Nakamori Akina, Kudo Shizuka…

- Description from novelbuddy

It all happened so abruptly. After finally grasping my situation, I found myself in an entirely different world. Looking around, I noticed others in the same predicament… Could this possibly be one of those Hero developments?

Was there a tyrannical Demon Lord needing extermination, or would I be tossed into the maelstrom of war? Whatever it was, I was afraid. I never wanted to be a Hero. I don’t want to harm another…… Ignore the nonsense I was spouting; there was nothing to fret over.

The Demon Lord was slain a thousand years ago, and 800 years had passed since the last war. The nobles didn’t treat us summoned like tr*sh; instead, we were kindly cared for. The Demons have been on good terms with Humans for some time now. Dangers, such as monsters, were being taken care of by the Guild and the Order of Knights. What’s more surprising is the fact that I wasn’t even a hero! Instead, I was unintentionally summoned!

It also turns out that this world was a world in which the three races, the Spirit World’s Magical Races, the Celestial World’s Divine Races, and the Mortal World’s Human Races, are kind neighbors. Here, everyone lives a peaceful and fulfilling life.

In summary, this other world was――at peace.

What’s my plan for the future? For my limited stay here, I will live this world to its fullest; going on a cultural exchange, sightseeing, then, after experiencing the festival that is only held once every ten years, …… I shall safely return home.

However, despite my lust for a peaceful last year before returning, this planet’s heavyweights have begun amassing around me, and……