Living Lock

"Here, it's yours." With only a key and car left behind by his vanished father, Ikuto—now grown up and licensed to drive—defies his mother's attempts to get rid of the vehicle. He moves his belongings into the car and begins living there, but after a decisive argument one day, he runs away from home. Pressing the pedal to its limit as he races through mountain roads, that's when...!?

(Source: MANGA Plus)