Number 6/Relationships

Knuckleduster
The Scarred Man was trained by Knuckleduster when he was still the Pro Hero known as O'Clock. Knuckleduster chose him as a disciple because he has an Acceleration Quirk similar to his. At some point Knuckleduster lost his Quirk and the Scarred Man became a criminal, working for the Villain Factory.

It is unknown how their relationship was before that happened, but nowadays the Scarred Man has great respect for his former master, to the point that he has a huge poster of O'Clock in his apartment. His admiration is such that his characteristic scar on his face is self-inflicted, as a tribute to the one that Knuckleduster has. He is so proud of this scar that he can not bear to have another injure on his face.

For his part, Knuckleduster does not seem to have any affection for his former disciple. When Tanema tells him that the police have had an encounter with him, Knuckleduster recommends that, if the police come across the villain again, they'll shoot him down immediately.