A-Do 5 (manga)

Doctor Inui’s twisted “obedience training” may have turned Eito into a mindless killing machine, but Colonel Tsujiura insists on keeping Eito alive so Ewan can extract his powers. Yet Tsujiura, Doctor Shiga, and the remaining soldiers face more immediate concerns as the half-mad Doctor Inui pulls a secret kill switch that threatens to flood the facility. Can the survivors band together to escape, or will they all find a watery grave?