How Can the Fraudster's Affairs Be Called a Liar?

Nioh, who was busy decorating and constructing his new home a second ago, was reborn as an elementary school student after waking up. He looked down at his much shrunken body and the obvious contrast between his weak figure before and after playing tennis, and finally fell into the arms of tennis. Even though there is only one month left before the start of the first year of junior high school, it is obviously not feasible to squeeze into the main selection position according to the regular rhythm. The Great Deceiver Magister Nioh raised an extremely confident smile. "Hello friends, here's a quick guide to tennis in one month!" Mr. Toyama of Shitenhoji Temple can learn tennis for a few months and crush a group of people. Isn't it reasonable for him to crush a group of people in "a month"? *The rebirth article comes with a little cheating (I've already been reborn, so let me) *Incomplete research, I mainly want to write a very clichéd three-game winning streak. *There is no clear main plot, I mainly made it up, the characters are very OOC and may not fit the type you want. Push my advance payment "Self-cultivation of Working Workers" One sentence recommendation: My guardian taught me how to wear many hats. After drinking coffee, I bumped into a guardian who I haven't seen for a long time. He wears many hats. Wow, is this the power of adults? "Yokohama Vinegar King's Famous Double Standard" One sentence recommendation: Why can't he only see me? My wife and I have known each other since childhood and got along well, but there is one problem. He is always surrounded by a group of warblers. What should I do to make my wife only see me? Intention: To the youth I love.