Gantz/23 by Hiroya Oku

In this gripping installment, the stakes are higher than ever as the survivors of the Gantz missions face their most formidable challenge yet. As the mysterious black sphere continues to summon them for deadly battles against alien foes, tensions rise and alliances are tested. The characters grapple with their own humanity and the moral complexities of their actions, all while trying to uncover the truth behind the enigmatic Gantz system. With intense action sequences and unexpected twists, this volume pushes the boundaries of survival and sacrifice, leaving readers on the edge of their seats.