Abyssal Demon

The sea is deep, the sea is terrifying, and the sea breeds revenge and rebirth. A new creature named "Abyss Demon" uses the screams of the environment and the anger of the earth to start a bloody killing on humans! Humanity is trying to fight back, building defenses, developing technology, countering invasions, paying blood for blood, discovering "biomass" and looking for "adapters". Where will everything end up? Peace or eternal strife? "Lan Yu, this is all up to you."