About the Author: Negi Haruba debuted in 2013 with the story "Coward's Crossword" in Kodansha's Magazine Special. Haruba's first series was Purgatory Karma in 2014, followed in 2017 by The Quintessetial Quintuplets, which became a runaway hit worldwide and inspired two seasons of anime and a film.

Format: Paperback | Pages: 192 | Publication Date: 2026-05-26