Flying Raijin Mark

Li Yu finished speaking in one breath and left with the speed of flight.

Time to go prepare; I have to head to the Ninja Academy tomorrow.

A team leader, huh? That's actually quite interesting.

Get ready to face judgment, you rookies.

Li Yu returned home to find Uzuki Yuying sitting by the window, resting her chin in her hands with a faint smile, her gaze drifting blankly outside.

She didn't even notice Li Yu standing right beside her.

"Yuying, what are you thinking about?"

"Ah!" She turned around, and upon seeing Li Yu, her face instantly flushed red as she lowered her head, not daring to meet his eyes.

Li Yu didn't overthink it. Seeing Uzuki Yuying in this state, he bent down and swept her up into his arms in a bridal carry.

Another startled "Ah!" escaped her as she buried her face in Li Yu's chest, her cheeks burning hot.

Carrying Uzuki Yuying, Li Yu wore a mischievous smirk. He remained silent, walked to the room, opened a hidden door, and strode toward the laboratory.

Uzuki Yuying, still in his arms, hadn't noticed the change in environment at all and whispered, "I'm not feeling well today, could you please..."

Arriving at the lab, he set Uzuki Yuying down in the center of an inscribed magic circle and replied with a smirk, "Could I please what?"

Looking around and realizing the situation, Uzuki Yuying was immediately overcome with embarrassment.

"Hahaha, where did your mind wander off to? How could I not know you aren't feeling well?"

Li Yu regained his composure and said seriously, "I brought you here for your own safety."

"I intend to seal a permanent Flying Raijin Mark on your arm so that if you ever encounter danger, I can arrive the moment it happens."

"This permanent Flying Raijin Mark is a new jutsu I've developed."

"If you run into a situation you can't handle, you can trigger the mark. Even if I've left the village, I'll know you're in danger and can use the Flying Raijin Jutsu to return immediately."

"You can also borrow the vast amount of chakra stored within the Flying Raijin Mark to use ninjutsu, or even use the Flying Raijin Jutsu itself."

Li Yu signaled for Uzuki Yuying to sit down, then pulled up the forehead protector covering his left eye, revealing a blood-red eye with three tomoe slowly rotating.

Seeing this, Uzuki Yuying covered her mouth with both hands, staring at Li Yu's eye in shock as she trembled, "Sha... Sharingan? The Uchiha Clan's Sharingan?"

"Yuying, don't think too much about it. The surprises are only just beginning."

Li Yu focused his chakra into his eyes; his right eye also transformed into a three-tomoe Sharingan, while the three tomoe in his left eye spun rapidly, merging into a four-pointed shuriken pattern.

"Could it be that you..."

"I'll explain this to you later." As he spoke, his hands moved in a rapid sequence of seals.

He condensed chakra into his five fingers and grabbed Uzuki Yuying's right wrist with one hand.

"Flying Raijin - Seal!"

A black pattern shaped like a three-pronged special kunai formed on her wrist, with a unique swirling black design in the center.

Li Yu let out a sigh of relief.

"It's done."

"A sealing jutsu combining the Four Symbols Eight Trigrams Seal and the Flying Raijin Mark."

"Yuying, try injecting your own chakra into this mark and use it to sense the coordinates of the Flying Raijin."

Li Yu casually tossed one of his custom-made kunai aside.

In a flash of purple light, Uzuki Yuying caught the kunai in mid-air and landed gracefully.

"Good, good! I didn't expect you to master the Flying Raijin Jutsu so quickly."

"Clap, clap." Li Yu applauded, his eyes gleaming. It was unclear whether he was praising Uzuki Yuying or the success of his own new technique.

"It seems we can proceed to the second step."

Li Yu's left Mangekyo Sharingan spun rapidly, the space distorted, and three massive scrolls appeared on the ground.

"Yuying, come here quickly."

A flash of purple light appeared directly at Li Yu's side, and she said to him with a beaming smile, "The Second Hokage's Flying Raijin Jutsu is truly incredible, but it consumes far too much chakra."

"Just those two uses consumed nearly ten percent of my chakra."

"It seems your chakra reserves are indeed too low compared to mine."

"But that doesn't matter; I've already thought it all through for you."

He opened the scroll labeled 'One-Tail' on the ground, pulled over Uzuki Yuying's wrist bearing the mark, and signaled for her to sit beside him.

Li Yu condensed chakra into the five fingers of his left hand and placed them on the chakra scroll, twisting them as if turning a key.

He performed the same action with his other hand, unlocking the seal on Uzuki Yuying's arm in the same manner.

"Click, click."

The One-Tail's chakra surged like a dam breaking, rushing wildly from the scroll into Li Yu's body, and then pouring directly into the seal on Uzuki Yuying's arm.

With these operations, Li Yu sealed half of the chakra from the One-Tail, Four-Tails, and Five-Tails scrolls into the permanent Flying Raijin Mark on Uzuki Yuying's wrist.

Three small swirling patterns appeared on the mark. Seeing this, Li Yu wiped the sweat from his forehead and let out a sigh of relief.

"Finally finished."

"Yuying, with the chakra of these three Tailed Beasts, you have instantly become a Kage-level powerhouse—and a very formidable one at that."

Using Kamui to store the scrolls away, Li Yu covered his left eye with his forehead protector, deactivated his Sharingan, stood up, and pulled Uzuki Yuying along to activate the Flying Raijin.

Outside Konoha Village.

Uzuki Yuying was incredibly excited, using the method Li Yu had taught her to unseal the chakra.

After placing her left hand over her right wrist, a "click" sounded, and the One-Tail chakra surged from her arm into her body. Sand began to swirl all around her; she was actually able to manipulate it.

"Click."

"Click."

Uzuki Yuying alternated between having steam rising from her entire body and becoming as scorching hot as molten lava.

"To think it's Boil Release and Lava Release; I'm almost envious of you."

Once she had roughly adapted to her current physical state, Uzuki Yuying hopped over to Li Yu's side, grabbed his arm, and leaned against him.

"Yu, you're so good to me."

Li Yu turned his head, gazed deeply into Uzuki Yuying's eyes, and, imitating the "oppas" from idol dramas, said, "If I'm not good to you, who else would I be good to?"

According to the script of an idol drama, the next step should be to push her down.

In the modern world, Li Yu's actions would be the equivalent of buying his girlfriend a car and a house; how could she not be happy?

In this ninja world plagued by constant warfare, strength was of paramount importance.

With Kage-level strength, even if she encountered someone of Madara's Super Kage-level, she could hold out for a few rounds rather than being instantly killed like an ordinary ninja.

Returning to the laboratory via Flying Raijin, he explained the origin of his Sharingan to Uzuki Yuying.

He gave her a rough account of how he had been severely injured by an Explosive Tag trap set by enemies on the battlefield, how he had conducted research alongside Orochimaru, and how he had used the results of that research to successfully recover his body and awaken Wood Release and the Sharingan.

In short, it was a blessing in disguise.