A short spin-off anime released on Kouya no Kotobuki Hikoutai: Oozora no Takeoff Girls! game app and YouTube. (Source: AniDB)

Whether it is investigating stone shrines, tracking rumors, or simply playing hide and seek, Koyomi Araragi is always there to fulfill the requests of his friends from both the human and supernatural worlds. In this series of short stories, Koyomi helps each of the girls in his cohort solve a mystery or kill some time, all while slowly unraveling the truth about his town and its many supernatural occurrences.

The story takes place in Lingshan, where a group of hopeless people are gathered on the earth. Most of them are poor, vicious, or extremely evil, abandoned by the society in Lingshan. This is where the fourth generation of Kuiba Mi Lin was born. The Heavens struggled to find Kuiba to no avail. In order to eliminate Kuiba, the Heavens determined to blast Lingshan into the ground. Mi Lin rose from the predicament, and his spirit gradually awakened souls with flesh and blood in Lingshan. Mi Lin led the Lingshan Army to sweep across the world, against the Heavens, and became the overlord of the world. (Source: Tencent, translated)

Long ago, one of the supreme beings in the heaven tried to save humanity from the tyranny of the other gods but lost his life. During his last breathe, he passed his soul power so that one day a chosen one may follow his lead and take mankind towards the path of victory from annihilation threat. Thousand of years later, our hero regains power, fights evil nobles, and thus thrives in this new world with his over powered capacities.