Simultaneous Time Travel: Why are They All Lying and Winning Dogs?

Shirakawa came to the world of Naruto, and after more than 20 years of polishing, he finally chose to lay down. He chose to return to the Ninja School to teach. Just like Iruka, Shirakawa worked hard, and maybe he could become a principal in the end. Unexpectedly, there were countless of himself who traveled through time at the same time? Sharing everything! As long as the other selves work hard, then Shirakawa can... The monster Shirakawa shared his shooting skills with you! The unemployed Shirakawa shared his work experience with you! The elementary school student Shirakawa shared his foreign language proficiency with you! ...Wait, I'm here to get the cheats, what is this elementary school student doing? A bunch of dogs who win by doing nothing! Are they counting on me to get the MVP? Shirakawa wanted to cry but had no tears. Suddenly one day, the unemployed Shirakawa said: "Brothers, something is wrong, I seem to have become... a Kamen Rider!" Then everyone's style of painting changed... It seems...