Tennis: The World's Most Reckless Player, Reporting for Duty!

I'm speechless. The protagonist, with at least 30 in all five stats, can't even handle the South Korean U17 team's star player? What kind of South Korean team is that?

The ultimate force can break all laws, just like the great god Pangu fighting against three thousand chaotic demons! No matter how good your technique is, the law of force makes it impossible for you to deflect or avoid it; you can only take it head-on!

I've read about fifty chapters and still don't understand the purpose of the protagonist's "Brawler System." It just gives him a height and weight that don't match his age at the start?

What's in chapter 120? Half a year of training and no speed improvement at all? Training sweet spot technique, but no improvement in the other five technical dimensions? With only four speed and five dimensions, how can you even catch the ball against world-class players? This is just utter nonsense.

You're still limiting the protagonist in a fantasy tennis game? The way the characters act cool is a bit forced and not satisfying enough.

Ryoga Echizen was beaten into a pulp.

Hyotei is an elite school, and Akutsu doesn't have the money. Without help, how can he transfer?

I know my classmate is 14 years old (by Chinese reckoning), 1.8 meters tall, and weighs 190 pounds. He's a bit strong, but how come you think you can bully him like that?

If there are romantic scenes, try to gloss over them.

I've seen too much pure tennis, it's getting a bit tiresome. Could you perhaps introduce Fuji and Echizen's older sister, or Tachibana's younger sister? Maybe some slice-of-life scenes to bridge the gap. If you can't write romance, then disregard what I said.