The original light novel 'Juni Taisen: Zodiac War' written by Nisio Isin with illustrations by Hikaru Nakamura was published in Japan.
The manga adaptation of Juni Taisen: Zodiac War began publication, expanding the franchise's presence in print media.
The inaugural Zodiac War is held every 12 years, pitting 12 warriors representing the Chinese zodiac signs against each other to fight for a wish-granting prize.
A secret organization is formed to manage and oversee the Zodiac Wars, ensuring that only one warrior survives to grant their wish.
Each Zodiac warrior is selected and begins their training and preparation for the upcoming battle royale, scheduled every 12 years.
The latest Zodiac War officially begins with all 12 warriors gathered on the battlefield to fight to the death for a single wish.
Major confrontations occur between the Zodiac warriors, including the deaths of significant characters, shaping the course of the tournament.
Usagi, the Rabbit warrior, emerges as the sole survivor of the Zodiac War, earning the right to have their wish granted.
Following the conclusion of the battle, Usagi makes their wish, impacting the world beyond the conflict and ending the latest Zodiac War.