Genos

Genos is a cyborg hero and S-Class member of the Hero Association in One-Punch Man. After a rogue cyborg destroys his hometown, he dedicates himself to finding the attacker and becomes Saitama's self-appointed disciple.

Genos as Saitama's cyborg disciple

Serious, analytical, and intensely focused on improvement, Genos interprets Saitama's ordinary comments as profound lessons. His desire for revenge repeatedly pushes him into dangerous upgrades and reckless battles.

Upgrades, incineration power, and the search for the mad cyborg

Genos uses interchangeable cybernetic bodies, incineration cannons, high-speed movement, sensors, and close combat. His relationship with scientist Dr. Kuseno supports his reconstruction, while friendship with Saitama gradually gives him goals beyond vengeance and raw power.