Prince of Tennis: You Aren't Allowed to Play Tennis

Transmigrated to the Prince of Tennis world, neighbors and childhood friends with Tezuka. Kamikawa activated a data panel system, needing only to exercise daily to grow stronger. To prevent the tragedy, he recruits Tezuka to join Hyotei and dominates the national tournament with three consecutive championships. "Mr. Kamikawa, at only 25 years old, you've become a myth of the tennis world. What are your thoughts?!" "Myth? Have you seen the moment the sun rises at 4 a.m.?" "This..." "Rather than a myth, I'd say I just worked a tiny bit harder than ordinary people."