Naruto Begins with Beating Kaguya

My name is Totsuki Yagyu. I received a system mission and came to recover Otsutsuki Kaguya. The invincible record made me confidently choose to recover her within 24 hours. Sure enough, I beat her violently. But as I couldn't kill her, I failed the mission and was locked up in a dark room. Many years later, during the battle to become famous as a Sannin, I ended my confinement in the dark room. "Let the world tremble under the bravery of heroic spirits!" "I am the end!" This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.