Juni Taisen: Zodiac War

Juni Taisen: Zodiac War is a Japanese light novel series written by Nisio Isin and illustrated by Hikaru Nakamura. Set in a city of half a million people who have been removed, twelve warriors representing the Chinese zodiac animals are pitted against each other in a deadly tournament known as the "Zodiac War", which occurs every twelve years. Each warrior ingests a poisonous gem that will kill them after twelve hours. To have one wish granted, the warriors must collect the gems from their opponents before midnight. This becomes a ruthless battle for survival where the winner will be granted one wish. The series has been adapted into anime and manga, known for its intense action, strategic elements, and suspense.