The Warden Descends: I House All Beasts

In an apocalypse ravaged by beast floods, college student Jiang Huai, on the verge of death after being attacked by infected, accidentally awakens the power of the Abyss-level beast Hundred Bones. He becomes the new warden of a mysterious prison, capable of transforming into a bone giant to fight and consuming beast cores to evolve. Lu Wanyin, an awakened being tasked with monitoring him, falls for him as they go from pretending to be a couple to fighting side by side. While Jiang Huai hides his identity as a beast, he protects his lover and seeks the truth amidst organizational conflicts and the looming threat of beast floods.