Reg, Made in Abyss Wiki

Reg is a robot who appears to be a little boy. His actual age, origins and even name are unknown, since he can't recall anything about his life before the encounter with Riko. He was named Reg by Riko after a dog she used to have. Reg's body is extremely durable and resistant to physical damage. It's also way lighter than its size would suggest. The arms could be extended for as far as 40 meters and each of them has a built-in Incinerator relic. These high-powered beam cannons are capable of red

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