Yin Seal
Tsunade was slightly surprised to see that Xuan Ye had opened his eyes after only an hour of closing them, but her years of experience fighting outside allowed her to suppress her surprise, though a look of worry still lingered on her face.
"Hmm! I think I've almost mastered it. Now all that's left is to perform the Shadow Seal Technique once more," Xuan Ye replied in a low voice.
Although he didn't know whether this Sealing Jutsu would be effective or what would happen after it was used, he assumed it wouldn't have any bad results, and even if it wasn't effective, it wouldn't make the outcome worse.
"Okay! Xiao Ye you can sit here and practice without worry, Xiaoye! I'll stay here and protect you, so don't worry about any danger." Tsunade said with a very confident expression.
She had made up her mind that no matter what dangers might arise during this time, she would protect her younger brother, Xiao Ye, so that he could have a quiet place to perform the S-rank Sealing Jutsu — the Yin Seal.
After Xuan Ye nodded to Tsunade, he sat down on the open ground and began to circulate his chakra, ensuring that it flowed according to the chakra circulation method of the S-rank Sealing Jutsu, Yin Seal.
After sitting on the ground, he closed his eyes and focused all his energy on circulating his chakra. He stopped paying attention to anything in the outside Xuan Ye because he trusted his sister Tsunade and believed that she could protect him from anything that posed a threat.
At first, it's very simple; you just need to circulate chakra within your body. But the difficulty will gradually increase later on.
After channeling a portion of his chakra to his forehead, Xuan Ye began the process of casting the Yin Seal, guiding the chakra step by step according to the Yin Seal's operating method.
There were some difficulties along the way, but none of them were a challenge for Xuan Ye. They only made him a little nervous, but they would pass quickly.
Gradually, beads of sweat appeared on Xuan Ye's forehead. It seemed that things were getting a little difficult at this point, and the difficulty was constantly increasing.
"As expected of an S-rank Yin Seal — the Yin Seal is indeed quite difficult, but it's still manageable for me," Xuan Ye thought to himself.
The Yin Seal was quickly broken, and Xuan Ye opened his eyes. The whole process took about half an hour. Although there were many difficulties during this time, Xuan Ye overcame them one by one.
"Call!"
Xuan Ye opened his eyes and let out a breath, finally relaxing his tense mood.
After examining my body, the most important thing was to feel the White Tiger Fang on my forehead and see how it had changed after the Shadow Seal Technique was applied.
"Hmm? It seems the seal is much stronger now, no longer as loose as before."
Suddenly, Xuan Ye sensed something different; the outcome was much better than before.
He took out a mirror and looked at himself. There were some changes on his forehead. His white canine tooth seemed to be trapped, and its outer edge was surrounded by a diamond-shaped mark.
"It seems this Shadow Seal Technique is quite useful! It even appears to have some special functions."
Xuan Ye examined the white canine tooth on his forehead again and found that the sealing power was now several times stronger than before, and changes in his emotions would no longer easily affect the white canine tooth.
It seems that the diamond-shaped mark outside the White Tiger Fang caused the sealing power to increase several times.
Even if my emotions change slightly now, it doesn't matter anymore, and it won't affect the change of that White Tiger Fang.
"However, even so, there are still drawbacks. It seems that due to the existence of that diamond-shaped mark, it absorbs the evil energy emitted by the White Tiger Fang when it gets emotional, and then seals it."
"There is a downside to this. As long as you don't get too emotional, you'll be fine. But if you get too emotional, the aura emanating from the White Tiger Fang will double again."
"If the White Tiger Fang has a problem, then the evil energy that the diamond-shaped mark has been absorbing and sealing will also be released, and the increase in the total amount of evil energy will lead to a dramatic increase in Xuan Ye's combat power."
If it were any other time, when he was of sound mind, Xuan Ye would be happy that his combat power could increase significantly.
However, at that time, one's mind will temporarily disappear, so even if one's combat power increases dramatically, it will only make it easier to kill people and result in a greater number of kills.
"Xiao Ye, is it working? Is the Yin Seal Sealing Jutsu effective?" Tsunade saw that Xuan Ye had opened his eyes and noticed that there was a diamond-shaped mark on his forehead, which was trapping the white tiger tooth.
Tsunade wasn't sure if this S-rank Sealing Jutsu would be effective. Although she saw the changes on Xuan Ye's forehead, she still wasn't sure.
"Tsunade- neechan, the S-rank Sealing Jutsu you gave me— the Yin Seal— is effective. It greatly increased the sealing power of my White Tiger Fang, and it's very useful. Thank you," Xuan Ye said with a smile.
"No need to thank me! You're my little brother, Xiao Ye. It's only natural for me, as your older sister, to help my little brother!" Tsunade saw Xuan Ye smile and was happy too.
"However," Xuan Ye hesitated for a moment, but finally said, "It also has its downsides."
Xuan Ye explained the disadvantages of the rhombus-shaped mark to Tsunade was stunned after listening.
"I don't know if my decision to give you this S-rank Sealing Jutsu — the Yin Seal —was the right one or the wrong one," Tsunade concluded with a self-deprecating remark.
"It's alright, Tsunade. Actually, I think the benefits outweigh the drawbacks. Shadow Seal Technique, although the consequences of an outbreak would be more severe, as long as it doesn't break out, everything will be fine."
"Most importantly, I no longer need to deliberately suppress my emotions. I can get angry whenever I want without having to suppress them."
"So I think the advantages actually outweigh the disadvantages. There are disadvantages, but even if it really explodes, what difference would it make if it improved a bit more!"
Xuan Ye was not pessimistic because of this. After all, even if he was pessimistic, the outcome would not change. So why not live happily every day?
For some reason, Tsunade felt a pang of heartache upon seeing Xuan Ye. "It seems like it's been a long time since I've felt this way. It's been so long since I've known what heartache feels like." Then Tsunade smiled. "It seems this feeling is quite nice."