One-Punch Man is full of extraordinary heroes with abilities, including those refined through machinery and psychokinetic espers in the Hero Association and beyond. However, one particular cyborg has turned out to be especially prominent among Saitama’s allies due to the extent of his modifications, although he has featured far less in recent chapters. Genos, Saitama’s disciple and friend, is confirmed to be a near-impossible feat of cybernetic engineering, as remarked in the recently released chapters of One-Punch Man.

https://screenrant.com/one-punch-man-saitama-genos-special-modifications-wavygyaza/