New Prince of Tennis: Yukimura Seiichi's Cousin

Good-for-nothing from the start + transmigration + System + tennis + scheming + face-slapping + multiple heroines + hiding his strength + invincible tennis skills + flirting

A 22-year-old overworked wage slave dies suddenly in front of the screen while watching Prince of Tennis. When he opens his eyes, he’s become Yukimura Seiichi’s good-for-nothing cousin, Echizen Kaito!

He’s so unfit he can’t even return a serve, and as a dependent, he’s bullied by relatives in every way imaginable. His haughty older cousin looks down on him for being poor, his older cousin in the tennis club uses him for target practice, and even his little cousin dares to steal his odd-job wages. Luckily, he gets bound to a chatty tennis comeback System that nags like a middle-aged market vendor. The beginner’s gift pack gives him a fitness potion and a brutal smash that spins straight into the ground, while the missions are bizarre: tie a bow on Sanada’s tie and tell his crush a cheesy pickup line.

The money-hungry Kaito, who dotes on his little sister, is forced into action. He works odd jobs to support her while using the System’s skills to hide his strength and humiliate everyone who looked down on him. His Twist Serve crushes the weak, and his Dimension Slash dominates the court. He goes from a substitute in Rikkai Dai’s in-school tournament all the way to the national championship. Even “Emperor” Sanada and “Data Freak” Yanagi Renji are won over by him, while “Trickster” Niou becomes both his teasing friend and comrade in battle.

The ultimate KPI: win five consecutive championships in the tennis world and win over the designated girlfriend to return to his original world?

Kaito says: “I can earn money for my sister, humiliate my enemies, and win the championship all at once. But could the System nag a little less? The tennis world is about to be turned upside down by this good-for-nothing who transmigrated here!”