Starving Anonymous Vol. 4 (Kodansha, 2018)

Charged with preserving peace and order in the Cradle, the mysterious Halcyon Group answers to the beck and call of one man-Kiriyu. When he sends them after I'e and his friends, the group's horrible secret comes to light: they've been forced to undergo taboo reconstructive surgery to grant them twisted, horrifying powers. After a valiant escape effort, I'e and the others find themselves in Kiriyu's clutches and strapped to an operating table. His prisoners' cries fall on deaf ears as he sets to work on his forbidden experimentation… Ethics and morals fall by the wayside as the fight to survive rages on!