Oideyo Mahou Shoujo-mura (Fuhou Senkyo)

Tomakomai (43 years old) is an old office worker who has become a magical girl as a result of power harassment by the company president. She (he) settles in a magical girl village where the happy Nemuro (120 years old? I don't remember anymore) and Seikou (270 years old? I don't remember anymore) live, who can't live without alcohol. The magical girl life in this (illegally occupied) village filled with madness and despair begins!

(Source: Official Synopsis, Translated)