- Voice Actor (CV)
- Ayumu Murase
- Gender
- Male
- Role
- Protagonist
- Identity
- Member of the First Special Investigation Unit of 'Mumyo Domain', pilot of MA-Vess 'Sable', former psychiatric facility detainee
Personality
Sadistic Cruelty
Psychological Instability
Obsessive Possessiveness
Fear Seeking
Heito Isaku is a pilot recruited by the IX organization directly from a psychiatric institution, carrying the dark history of having murdered his own family. His personality is deeply warped, finding his greatest gratification in witnessing the terror of others. He harbors an intensely pathological obsession toward his comrade Emiru Yabusaki. Following the tragedy that befalls Emiru, his already fractured psyche collapses entirely, giving rise to a frenzied and unrelenting fixation on her very soul.