Riyu

Riyu is one of Marin's two bodyguards.

Appearance
In stark contrast to its counterpart Oin, Riyu is a very tall and brightly colored robot. It is supported by eight spider-like legs, and has eight arms.

Personality
As a robot, Riyu has little to no personality. However, unlike Oin it talks a lot.

Abilities and Powers
Prior to the Ghost City Arc, Riyu had never lost a battle.