Abnormal month

In the infinite flow of the anime, Type-Moon started, and the subsequent events involved the school battle city, the cursed battle, Overlord, etc.
The earth died, the sky was covered, the filthy curse spread all over the world, the monsters roared in the wild, the evil spirits were watching in the dark, the cursed spirits were lurking in the shadows, the demons were arrogant in hell, and the blackened servants were patrolling the territory... Humanity suffered a huge setback, and the world's population was reduced to one hundred. The remaining people could only hide in the base city to survive.
Fuyuki City is one of the four remaining base cities in Neon.
After traveling here, Roy already felt that something was wrong, but when he saw Kasumigaoka Utaha, Hayasaka Ai, Nakano Miku and others who came one after another, he realized that it was not just the Type-Moon world that was abnormal, but the entire anime world was wrong.