The Rokudo Rounds Vol. 3 (Kodansha, 2022)

Round one of the Rokudo Tournament, “The Plummeting Hell” begins! The stage: The Fall Garden, an island suspended in midair by Miroku's powers. Swallowed up in the island's collapse, En unleashes a full-power Black Lightning to keep his promise to Joe! Meanwhile, an opponent promising trouble for En takes the stage: Iko, a girl he met after the preliminaries. She's been brainwashed and entered into the fray by her father, who possesses an abnormal fixation with the tournament. En discovers the doll-like, lifeless girl on the crumbling island, and decides then and there to save her from her father!