Lightless Sea

The Lightless Sea is a location in the combat map screen that is unlocked at Commander Level 20. The Lightless Sea consist of a series of stages called "Command", a fightable stage with 2 waves that can be challenged indefinitely. Each stage requires certain conditions to be met before entering the stage.

Each Lightless Sea stage rewards different materials that are necessary for abyss awakening. Each stage will always reward Black Mud Colloid and the other rewards will drop randomly. After Command 7, Deep Sea Spinels and Picometer Materials, items that are required for Doll Remodeling, will drop as well.