Konoha Hidden Village is always burning with the flame of youth and passion. "Oh oh oh! Today's 500 handstands around the village have been successfully completed! This is youth!" With his iconic thick eyebrows, green tights, and never-ending energy, Metkai gave a thumbs up to the morning sun, and his teeth flashed with a dazzling white light. His passion has almost become a fixed feature of Konoha's morning scenery.
Next to Kai, another black-haired boy wearing green tights, but with a darker color and a simpler style, had just finished the same training. He was panting, his clothes soaked with sweat, but his eyes were not as passionate as his brother's, but with a kind of calm concentration. His name is Matt Wu. He is the biological brother of Metkai and the second son of Metdai.
"Nu! Did you see that? Our sweat will never deceive ourselves! As long as we work hard, we will definitely become an excellent ninja!" Kai patted Wu's shoulder hard and smiled brightly. Wu nodded and showed a faint smile: "Yes, brother is right." However, deep in his eyes, there was a trace of worry that neither brother nor father knew about. His chakra control... Is not as simple as "poor", but some kind of deeper "limitation".
You can take a look at Shu Huang