2021 New Year – Rebirth of Shiramochi-ō

2021 New Year – Rebirth of Shiramochi-ō (2020正月-白餅王降臨-) is a holiday event that occurred in the Great Tomb of Nazarick. It was be released on January 1, 2021 to January 15, 2021.

Background
Momonga who visited the Round Table Room for a meeting, found Albedo, Demiurge, and a mysterious boy relaxing by a kotastsu and was puzzled. Momonga moves on his own to eliminate the "New Year" mood has spread in Nazarick.――Without knowing that this incident has happened a "second time"

Incident
Previously in Fake Nazarick the entity known as Shiramochi-ō is defeated and vanishes restoring the area to its original appearance. On that day, the "New Year" phenomenon that strick Nazarick ended with the White Mochi King's disappearance at Throne Room of Fake Nazarick. It should have been a case close, however at the same time in real Nazarick, on the 10th Floor at where the Throne Room is, the Ctack activates and out appears Shiramochi-ō who announces that he comes at the beginning of the year to purify all the old. His body at the center cracks open and the room is dyed white by the emitted light. From inside something new appears and a young blonde hair youth takes the Ruler of New Year's place. The boy looking at his surroundings wonders if this is the true opening of the mirror and wonders where he is.

Aftermath
TBA