Konoha: the Strongest Blue Beast

Rock Lee, who traveled through time and became the world of Naruto, actually activated the Effort System! No bloodline limit? Don't have a strong background? Genius? So what? This time I will never let my efforts go to waste! Gaara: "My absolute defense can't even block his attack!" Tsunade: "What a terrifying strange power! I lost the bet and I will go back with you to succeed the Fifth Hokage!" Payne: "Didn't Rock Lee go out on a mission? Why did he come back to the village?!" Uchiha Madara: "Do you also want to dance? Hey, wait, call your teacher Metkai to come out, I won't fight with the juniors!" This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.