Run on Your New Legs, Vol. 1 — Wataru Midori

Shouta Kikuzato's hopes of starting on his school's prestigious soccer team are derailed when a terrible incident costs him his leg.
Now in his first year of high school (again), Kikuzato has resigned himself to never reaching his athletic dreams. But when Chidori, a passing prosthetist, notices
Kikuzato's artificial limb- and speed-as he races through the train station, the specialist proposes a partnership: Chidori will build Kikuzato a brand-new leg designed solely for
speed. All Kikuzato has to do is run!