- Voice Actor (CV)
- Mariya Ise
- Gender
- Male
- Role
- Protagonist
- Identity
- Enigmatic Mechanical Boy (Aubade-class Relic), Abyss Delver (White Whistle-equivalent standing), Core Member of Riko's Expedition Party, Orphan of Belchero Orphanage
Personality
Innocent & Pure-hearted
Courteous & Composed
Selflessly Protective
Emotionally Sensitive
Reg is a robotic boy discovered deep within the Abyss by Riko, awakening with no memory of his past. Equipped with extendable mechanical arms and the devastating energy weapon known as the Incinerator, he embarks on a perilous journey alongside Riko. His dual purpose: to unravel the mystery of his own origins and to safeguard Riko as she descends toward the Abyss's lowest depths in search of her missing mother.