The phrase Manki Yagyo is the heart of the mystery.

Put together: MANKI YAGYO = “The Full Demon Night Walk” or “Parade of the Sated Devils.” This is not a casual club night; it’s a choreographed descent into hedonistic darkness, likely involving:

The name evokes Japanese Hyakki Yagyo (Night Parade of One Hundred Demons), a folkloric belief that on certain nights, yokai and restless spirits flood the streets. Manki Yagyo updates this for the party generation.


More rural, known for mountains and the 1998 Winter Olympics. A “Final” in Nagano would be odd for a devil party, unless it was a remote retreat-style event (e.g., “Devil’s Night in the Alps”).

Based on the keywords, here is a reconstruction of the Devil’s Night Party MANKI YAGYO -Final- if it took place in, say, Nagoya’s Club Diamond Hall (capacity ~800) on October 30, 2024.