Underground Labyrinth · Stage 23Underground B23F地底23層30Energy Cost1,692XP Reward350,000Enemy Base HP5,300Stage Length20Max Enemies8.3Difficulty Test your team vs this stageStage rewards50% — XP ×200,000 · Treasure RadarEnemy spawns (4)EnemyStrengthCountFirst SpawnRespawnBase HP TriggerNotesGreat Angel Chibinel100%116.7s—100%BossAku Doge300%416.7s13.3s~16.7s100%—Sinner Snache300%∞23.3s13.3s~16.7s100%—Aku Doge300%483.3s13.3s~16.7s100%—All Underground Labyrinth: The Grand Deep stages