A person with all the skills of a tennis king is a genius envied by everyone, but only Nagano Ryuichi knows that he actually doesn't know anything about tennis.
Nagano Ryuichi knew that without a system, he would be a waste, but so what, as long as he defeated Echizen Nanjiro, he could return to Earth and renew his relationship with the goddess!
This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.
