They arrived at an empty training ground in Konoha.
"A very powerful ninjutsu? Big Brother Ren, what exactly is the ninjutsu you want to teach me? Is it more powerful than the Three-Body Technique?" Naruto asked curiously.
"Of course. The Three-Body Technique is only the most basic ninjutsu, just the basic course of the Ninja Academy," Ren explained with a smile. "The ninjutsu I'm going to teach you today is an advanced version of the Clone Jutsu, called the Shadow Clone Jutsu."
"Shadow Clone Jutsu?" Naruto's mouth opened wide, as if an egg could be stuffed into it. He exclaimed, "But I think the Three-Body Technique is already very difficult. I haven't learned the most difficult Clone Jutsu yet. Shadow Clone Jutsu or something... I can't even learn it!"
Naruto scratched his head, looking embarrassed. He had no confidence in the upcoming ninjutsu learning.
"What are you afraid of? I'm still here, don't worry, you will definitely learn it," Ren smiled and comforted him. "The method I teach you is completely different from the method of the teachers at the Ninja Academy."
Ren took out a kunai, injected his own chakra into it, and threw it forward. With a puff of white smoke, three shadow clones immediately appeared in front of them.
"Look, this is how my Shadow Clone Kunai is used." Ren handed the kunai to Naruto and said, "Come on, inject your chakra into the kunai and do it the way I just did."
A puff of white smoke.
Three shadow clones of Naruto also appeared on the spot.
"This, this... This is the ninjutsu I unleashed? I've already learned this ninjutsu?" Naruto asked incredulously, his face full of surprise. With an excited expression, he almost jumped off the ground. "Yeah! I can also release my shadow clone!"
"It's not that simple." Ren was amused by Naruto's cheerful appearance. He couldn't bear to dash his confidence but had to tell him the truth. "Naruto, you just released this ninjutsu with the help of my kunai. Your ninjutsu learning hasn't officially started yet."
"Huh? Is that so?" Naruto scratched his head in confusion, then smiled slyly. "It turns out it's because Big Brother Ren's kunai has such an effect; it's truly a miraculous kunai."
"My family is in the ninja tool business. I'm also very interested in building ninja tools. The kunai in your hands is the result of my research," Ren said with a smile. "If you are serious about your studies, I can consider giving you this kunai."
"Really, really?!" Naruto immediately became excited. In his heart, he loved this unique kunai to death! "Big Brother Ren, teach me quickly, I will definitely study hard."
"Okay." Ren nodded. "The way to learn is also very simple. You have used this kunai just now, and you should have experienced what it feels like to cast a shadow clone."
Naruto listened very carefully and nodded.
Ren continued, "Well, next, I'll teach you how to make a hand seal."
In the four years that Ren followed Might Guy to practice abroad, in addition to basic taijutsu, Might Guy also taught Ren some of the ninjutsu and taijutsu tricks he knew. Of course, Ren had also learned ninjutsu like the Shadow Clone Jutsu. When using the shadow clone transformed from the Shadow Clone Kunai before, Ren's use of shadow clones had already given him a lot of experience. And when he followed Might Guy to formally learn the B-rank ninjutsu, the Shadow Clone, whether it was the speed of learning, or the use of this ninjutsu, Ren could do more with less, and the learning speed was astonishingly fast, even Might Guy was surprised.
At this time, Ren taught Naruto the method of learning ninjutsu he developed. Using his method to learn ninjutsu, even Naruto, who felt a headache as soon as he learned ninjutsu, quickly figured out how to practice the Shadow Clone Jutsu.
"Big brother! Big brother! Hehe, you really are here!"
In the distance, suddenly there was a girl's silver bell-like laughter. Ren and Naruto raised their heads at the same time. Then they saw Tenten and Hinata two girls holding hands and running from a distance.
"Hee hee hee hee, big brother, you must not have imagined it! Hinata rushed to ask me if you were back after school just now." Tenten leaned to Ren's side and whispered into his ear, "Big brother, you said that Sister Hinata was convinced by your charm, so she fell in love with you~"
Tenten's voice was not small, and Hinata, who was next to him, also heard these words. Her face immediately blushed, and it didn't stop until her ears were flushed.
"Ten, Tenten, I, I'm not, I'm just worried about Ren-kun..." Hinata whispered, her voice as thin as a mosquito.