Wiki founding: April 16, 2012
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Cavalier of the Abyss (심연의 카발리어) is a Korean manhwa series written by Juder. It is serialized in Young Champ magazine.
Sequel to Immortal Regis. Reading the entirety of the prequel is highly recommended, otherwise, this story from chapter 4 on will spoil it and/or be confusing.
Cavalier of the Abyss (so far) is set only in the world of Chaos. There is now a Regis of Chaos.