I Only Know Eight Skills, but I Have a Dog Charm

I, Matt Yu, was Kakashi's classmate at the same time. He had obviously graduated long ago, so why am I still hanging out in the ninja school? Oh, it turns out he is the nephew of the ten thousand year genin Matt Dai, who only knows individual techniques? Is the ultimate move only eight-door Dunjia? Okay, then I understand. "Fuck the standard start of the time traveler! The inherently evil system of the Golden Finger world, I will do it myself..." "It is detected that the host has strong resentment, the youth system is automatically activated, and the initial reward is obtained: the immortal power* spell. Please continue to use your youth!" Since then, there has been an invincible bastard in the ninja world who uses Eight Gate Dungeon as a passive skill. "Is weakening useful? Is the body of six paths useful? My youth will never fade! Ye Kai!" This book is also called My Youth Has No Regrets, The Right Song and the Right Person, The Super Shadow is Broken This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.