The New Prince of Tennis: Seiichi Yukimura's Cousin

Wasteful start + time travel + system + tennis + scheming + face slap + multiple female protagonists + pretending to be a pig and eating a tiger + invincible tennis skills + flirting with girls A 22-year-old 996 wage earner died suddenly in front of the screen of "The Prince of Tennis". When he opened his eyes, he was transformed into Yukimura Seiichi's good-for-nothing cousin Echizen Kaito! His physical fitness was so poor that he couldn't catch the serve, and he was bullied by relatives from all walks of life - his arrogant cousin thought he was poor, his cousin in the tennis club used him as a target, and even his younger cousin dared to steal his pocket money. Fortunately, it is bundled with a tennis counterattack system that is as nagging as a wet market lady. The novice gift pack comes with a physical potion + a violent smash (it spins directly into the ground when it lands). The tasks are so weird that you have to tie a bow on Sanada's tie and say earthy love words to your crush. Kaito, who is greedy for money and protects his sister, is forced to open a business. While doing odd jobs to support his sister, he relies on his system skills to act like a pig and eat the tiger, slapping everyone who looks down on him in the face. He dominated the court with his off-spin serve and dimensional slashing. He went from being a substitute in Rikkai University's intramural tournament to becoming the national champion. Even the "Emperor" Sanada and the "Data Madman" Yanagi Renji were impressed by him, and the "Deceiver" Niou became his comrade-in-arms. Ultimate KPI: Five consecutive championships in the tennis world + the designated girlfriend of the guide can return to the original world? Kaito said: Making money to raise a girl, beating the scum in the face, and winning the championship are all correct, but can the system stop nagging a few words? This tennis world is going to be shaken up by this time-traveling loser like him!