Character from Re:Zero by Tappei Nagatsuki
The third Great Mabeast — a poisonous serpent that spreads incurable plagues wherever it goes, the least-seen but most insidious of Daphne's creations.
The Black Serpent is the least-encountered of the Three Great Mabeasts but potentially the most dangerous in terms of lasting impact. Unlike the White Whale (which erases) or the Great Rabbit (which consumes), the Black Serpent poisons — its venom and the miasma it generates spread incurable diseases across entire regions. The plagues it creates persist long after it moves on, turning fertile land into death zones. It's responsible for multiple historical epidemics in Re:Zero's world.
A massive black snake that leaves a trail of toxic corruption. Its poison transforms the land itself — plants wither, water turns toxic, and living things mutate. Rarely seen directly; its presence is known by the plague zones it leaves behind.
Also known as: Black Serpent, The Black Serpent, Kurohebi