Renn is a former bus driver, he dreamed of being in the gran prix, a dream his parents didn't initially approve of. Even though he likes to keep quite, he also enjoys talking to people.
His nickname is Cyclopedia, he is a encyclopedic knowledge and he became a famed game show contesant in
Episode 11. He likes drawing the different Barbaric Machine Beasts on a notepad
and taking down their names. As Go-On Blue, his physical strength is that equal of a large-sized car,
and yet he manages to retain his cool. He is the group's cook, they love his cooking and wouldn't have
it any other way. Least the say, the cooking of the other members can not even be passable as cooking.
He dotes over the others, even to the point that Gunpei and Bus-On call him Hanto's mother. He is also a master mechanic
and engineer, being able to construct the companents to form EngineOh G6. He is most depenable and he stands by his word.
For example, in Episode 13, he stood up to a girl's father in a duel even though he is a menacing gangster.