After Mokgetsu's approval, Kakashi pondered and felt his plan was feasible.
By then, Shisui would practice Genjutsu with him; Shisui's Genjutsu could improve, while Kakashi could enhance the Transparent World. At worst, he could gain experience in dispelling Genjutsu, so no one would waste each other's time.
Stopping his battle review in his mind, Shisui nodded, "As long as it doesn't take too long, it won't be a problem."
After all, Shisui himself also needed cultivation and couldn't constantly test Kakashi.
"It won't waste much of your time, and you can also practice Genjutsu in the process." Kakashi briefly shared his thoughts with Shisui.
During this training, Kakashi not only had to maintain the state of the Transparent World throughout but also endure Shisui's Genjutsu attacks. Such an aggressive training could not last too long, or Kakashi's body would not be able to take it.
"Continuously using Genjutsu to attack you under the Transparent World..." Shisui pondered.
"Should it be Genjutsu of the same intensity as during the civil war, or a bit stronger?" Shisui asked.
Bending Spoon's single input of Chakra lasts for ten minutes, with each input calculated separately. If Shisui recovers while inputting, he can use Genjutsu much stronger than in actual combat.
"You didn't use your full power in the recent battle?" Kakashi was a bit surprised and couldn't help but respond to Shisui's question with a question.
He hadn't expected it, given Shisui's performance during the civil war, where Genjutsu had already shown great improvement.
"Not exactly. I have a Ninja Tool that, when infused with Chakra, can enhance the power of the user's Yin Release Ninjutsu. In non-combat scenarios, more Chakra can be infused to achieve higher amplification." Shisui explained, taking out the Bending Spoon.
With companions he's with day and night, Shisui naturally wouldn't deliberately hide information.
"A Ninja Tool that enhances Yin Release Ninjutsu." Kakashi instantly understood why Shisui's performance during the civil war differed from usual.
Sometimes it seemed he didn't use any Ninjutsu, yet his Chakra was depleted because Chakra was infused into the Ninja Tool.
"Let's test with the intensity from the civil war first." Kakashi thought for a moment and answered.
He decided to proceed slowly to prevent any issues arising from high intensity at the start.
Shisui nodded, gathered Chakra at the eyes, infused Chakra into the Bending Spoon, and finally locked eyes with Kakashi in the Transparent World, casting Genjutsu, which Kakashi dispelled as quickly as possible.
The two repeated the cycle until exhausted, then rested and engaged in other cultivation.
Obito noticed their unusual behavior and couldn't help mumbling, "Since when did Shisui and Kakashi get along so well? It's like they're just staring at each other and doing nothing."
Obito neither understood nor opposed; he was busy training the Armament Secret Technique.
In the afternoon, Mokgetsu first went to Tsunade's house to cook a meal for her, conveniently preparing portions for Kushina and Minato, and then sent a Shadow Clone to deliver it to Minato.
After dinner, Mokgetsu returned home to refine the Anbu training plan.
The training was set to commence officially in five days, and he had to organize the projects he would teach and simultaneously develop the Ninjutsu that hadn't been developed yet.
The core teaching project is the Breath of Darkness and its advanced Secret Techniques, which will be a key taught skill. Mokgetsu would use this to accumulate rewards related to the Breathing Technique.
The advanced Secret Techniques of the Breath of Darkness were actually an explosive skill of the Breath of Darkness developed by Mokgetsu, referencing the principle of the Pattern.
The effect is consuming specific Chakra to enhance personal capabilities, with notable improvements in strength, speed, and more.
Mokgetsu named it the Dark Burning Jutsu. Although its intensity isn't on par with its original, the Pattern, its advantage is its low threshold and ease of cultivation.
Mokgetsu had known for a long time while teaching Kakashi and others; currently, only three disciples could activate the corresponding Chakra Mode, showing the difficulty.
Next is Nature Transformation. Previously, Mokgetsu developed five D-rank Five Nature Ninjutsu for teaching, followed by upgraded C-rank Ninjutsu. This time, Mokgetsu was ready to develop all the B-rank versions to teach to the Anbu.
Currently, Mokgetsu had completed the development of Fire Release Fireball Sea Jutsu, Wind Release's Vacuum Slash, and Water Release's Water Torrent, with only Earth and Lightning Nature Transformations remaining.
Additionally, Mokgetsu's proficiency in Lightning and Earth Release Nature Transformation isn't as advanced as the others, resulting in fewer ideas.
Ultimately, Mokgetsu decided to derive Lightning Release from Pseudo-Darkness and Earth Release from Earth Dragon Spear, moving forward based on predecessors' experiences.
Two days before the training officially started, Mokgetsu completed all the Ninjutsu developments and specific teaching plans.
PS: Today's a two-in-one 8000-character long chapter. Recently, staying up so late has indeed scrambled my brain; staying up late every night. I'll try to adjust, but there might be another burst of updates next month. If I don't adjust, my body might not keep up.