An Adventurer and a member of the crew of Edens Zero, as well as their mechanical engineer. He is also a former thief from the Planet Norma and the younger version of Professor Weisz from the year X442.

Weisz is a selfish and stubborn person who only cared for himself, acted as if he didn't truly care about the others around him. As a thief, he would steal items he deemed worthy of value. However, it is shown that Weisz does care about his friends and he shows concern for others in his own way.

(Source: Edens Zero Wiki, edited)