As the discoveries of quirks become more frequent, some people are born with a little of superhuman inside them. It varies from of able to shoot something out of their bodies to whole-body mutations to make them look more like an animal or alien.

Resonably, sports become more competitive and more risky. Also, a new form of combat sport come into the limelight. Either way, people are able to compete with their abilities, which caused more injuries.

Tennis is no exception to this trend. Pro players are extremely skilled in basic tennis and manipulating their abilities. Of course, there are some pro-players do not have a quirk, yet still astonished the world with their skills. However, some players have some impressive equipments with them, which are also allowed in tournaments.

This astonishment doesn't limit to pros. Even some talented kids or teenagers have impressed people with their tennis skills. One such boy in America competed in various tournaments and won most of them.

When the news of him attending Seigaku, a high school in Japan, the tennis teams are all on ears, wanting to know how this kid become such an amazing player. It turns out that his father is a tennis pro-player, which somehow, paved the way for this prodigy player.

His name is Echizen Ryoma. People know him as "Seigaku's Super Rookie".

The status "Super Rookie" isn't for everyone, yet Echizen is indifferent with how most refer him as that. Some said he is extremely cheeky, which is accurate as he looks like he doesn't give a crap most of the time.

For the first few months of school, Echizen never stops to amaze everyone in the school and tennis team. He even have a small fanbase.

However, upon three months of starting the new school year, a new challenger approached Seigaku.