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Mayuzumi Asahi is a university student in Economics who lives alone and from time to time cooks for his two buddies.
He also is a Otaku for a magical girls show called "Ikai no Majoko" (t/n: "Magical Girl from another World") and collects figurines, posters and other merchandise of it. This show has a twist that reveals that the Attackers from another world are actually from 10000 years in the past, which makes him consider the show a masterpiece.
One day a girl with a black cat on her shoulder breaks into his apartment and attacks him with a stun gun while he is doing the dishes. He accidentally cuts himself on a knife in the process.
After that ordeal he goes to work at his in a shop for Anime-related goods. In the process of going after a female costumer who'd forgotten something he saves her from harassment, but gets beaten up by the harasser for his troubles. Luckily he suddenly summons a flaming car that runs the Attacker over? He understandably gets taken into police custody afterwards, who decide to drug and kidnap him to a remote location. After getting questioned by masked figures in black uniforms they decide that he is a Witch and burn him alive accordingly.