You Were Supposed to Ruin Rikkai, So Why Did the Whole Team Go Pro?

After transmigrating into the world of The Prince of Tennis, Fengyuan Guangxi becomes a wealthy, well-traveled tennis coach. He is made coach of Rikkai University High School's tennis club right away! From the start, he awakens the Strongest Tennis Coach System! But how is Fengyuan Guangxi, a transmigrator, supposed to know anything about tennis training? He doesn't even know how to hold a tennis racket! Fengyuan Guangxi: “What good is this Strongest Tennis Coach System? Can being a tennis coach make me filthy rich?” “I’m already a rich second-generation kid, so why would I be a tennis coach? I’ll just slack off and go home to inherit the family business!” “Dad, I don’t want to be a tennis coach anymore. I want to take care of you in your old age!” His father flies into a rage at Fengyuan Guangxi's slacking! Tennis used to be his dream! It was Fengyuan Guangxi's dream, too! “If you really weren’t cut out for this, I’d accept it!” “But you haven’t even tried, and you’re already saying you can’t do it. If you dare quit, I’ll cut off your allowance.” Faced with the threat of losing his living expenses, Fengyuan Guangxi reluctantly takes the job as coach of Rikkai's tennis club. To prove as soon as possible that he isn't cut out to be a tennis coach, he sets out to ruin Rikkai's players. When Rikkai's players ask him for advice, he makes things up with complete confidence. “Kirihara, what era are you living in, still playing traditional tennis? Look into the Eight Gates!” “Yukimura, your Five Senses Deprivation is so low-tech. This coach has heard of a technique that can completely hypnotize your opponent: Kyouka Suigetsu!” “Sanada, stop practicing Thunderbolt, you'll hurt your leg. Your coach will teach you the Flying Thunder God Technique!” Fengyuan Guangxi had thought he could use the anime techniques he made up to slow down everyone's training. But to his surprise, when he saw the dazzling skills one after another during the matches, he was completely stunned.