Black Percher

Also known as Pest, the "Black Percher" is the physical manifestation of the 80 million souls who tragically perished during the Black Death pandemic. Driven by a deep-seated grudge against the Sun (and by extension Shiroyasha) for failing to save those victims, she enters the world of Little Garden as an unofficial Demon Lord and the leader of "Grimm Grimoire Hameln" to seek her revenge. Despite her ruthless and arrogant demeanor in battle, her underlying motivation stems from a genuine desire to keep those lost souls from feeling lonely. After being decisively defeated by Izayoi Sakamaki and his allies, her physical form and soul are completely destroyed. However, she is later summoned back by Jin Russell and bound by a contract to serve as a maid for the [No Name] community. While she still easily loses her temper—especially over her embarrassing maid outfit or when being teased—her time with her new companions slowly melts away the sorrow and isolation in her heart, turning her into a reliable, albeit somewhat tsundere, ally.