As he returned home, Fujin chuckled at the thought of Guy training Neji, Lee and Tenten beyond their limits. He muttered, "Well, sucks to be them. Knowing Guy's training, I doubt they'd be able to get off their bed for a few days. That said"

Fujin entered his house and took a deep breath. He pondered, 'I still feel so exhausted. Opening the Gate of Opening twice in quick succession takes a lot of toll on my body. And my fist still aches.'

Fujin stared at his right fist. Soon, a green chakra covered his fist and began healing the damage. In a minute, the pain subsided. Fujin stretched his palm and analyzed, 'Fortunately, the damage was only superficial. And though I feel tired, it's only my body and mind being a bit exhausted due to suddenly getting used to their full extent.

My chakra is still fine. After resting for half an hour, I can continue training the Flying Thunder God. Still That sensation I had on opening the First Gate How beneficial it'll be if I can experience that all the time?

Is it possible for me to keep the Gate of Opening open all the time?'

Fujin fell into deep thought. After a minute, he thought, 'My current body definitely can't handle that much stress. I'll collapse very quickly. But can I train my body so much that it becomes strong enough to sustain it?'

Fujin very quickly shook his head and thought, 'No, even if I make my body strong enough, it won't be the same as using my body at 100% capability. Instead, what 100% of my body can do would become greater as well. Even if my future body can do my current 100% naturally, that wouldn't be the same as keeping the Gate open. So, how can I do that?'

As he waited for his body to rest up, Fujin thought continuously about ideas to be able to use his body at 100% capacity all the time without experiencing the drawbacks. Unfortunately, even after thinking long, he couldn't come up with anything.

He sighed and thought, 'A shame, I can't think of anything. That said, had it been that easy, I'm sure someone else would have already figured it out and a lot of top-level ninjas would have been able to do this. Now that I think about it, Guy's description of the benefits of Gate of Healing is quite similar to that theory on increasing cellular activity researched by Orochimaru.

I wonder if the Gate of Healing is what inspired him to undertake that research. Still, there are some differences. In some aspects, Orochimaru's method is superior. Increasing cellular activity increases chakra reserves permanently and without any drawback. The effect is much better than the Gate of Healing.

However, when using it in the middle of a battle to recover chakra, the drawbacks to Orochimaru's method are very harmful. In comparison, the Gate of Healing has no permanent backlash.

Regardless, the two are indeed similar. If Orochimaru was inspired by the Gate of Healing, I wonder if something similar can be done with the Gate of Opening. To figure out a way to increase the per cent of our physical strength our body can use That will be difficult though it shouldn't be a dead end. I'll try working on this if I have a lot of time on my hands in the future.

Another interesting aspect is whether the effects of increased cellular activity and the Gate of Healing can overlap Or if I can only use one at a time. From Guy's words, I should be able to open the Gate of Healing quickly. However, for increased cellular activity, I will need to wait for Tsunade to return to the village

That is more than a year and a half away at this point. And that'll only happen if events play out the same. If Hiruzen survives, then it is unlikely that Jiraiya will go looking for her. Even Kakashi and Sasuke won't be in critical shape as Itachi would likely not show up in the village. Only Lee would be injured, but I doubt that would make Hiruzen call back Tsunade'

Fujin sighed. Calculating the possible variations in the future he knew was too exhausting and extremely difficult. He decided, 'Leave it. There is no point in speculating so much. I'll just focus on increasing my strength. If the future does change and Hiruzen survives, I'll just use an alternate identity to target and injure someone important to Hiruzen bad enough that only Tsunade can heal them.

Preferably Homura or Koharu. If those two don't give any such opportunities, then I can only target Asuma. Though defeating them with just Lightning Release will be difficult, I still have a lot of time to create a good combat system revolving around my Lightning Release. Not to mention, I already have a very good idea. It won't take much time to be able to confront Elite Jounins while using just Lightning jutsus thanks to my strong basics.

Anyway, as long as I injure either of them badly enough, it should be enough to force Hiruzen to recall Tsunade to the village temporarily. I can take the opportunity to get her help to increase my cellular activity.'

With his decision finalized, Fujin continued his training. He rested long enough for the tiredness from opening the First Gate to disappear.

For the next few days, Fujin followed a different pattern. He stopped practicing his Wind Domain. Instead, he trained his body in the morning and followed it up by training the Flying Thunder God for the rest of his day. However, he opened the Gate of Opening twice daily with a long time between them to get used to it.

A week later, Fujin was sitting inside the Meditation room in his house in a meditative position. Suddenly, he opened his eyes and muttered, "Today's the day."

He took an alarm clock and placed it in front of him, setting the timer for 5 minutes. Almost instantly, the Gate of Opening opened and a surge of chakra appeared around Fujin.

Fujin had been able to open the Gate of Opening at will on the 4th day of practice. On the 6th day, he had become capable of keeping it open for 2 minutes straight while he moved around at a rapid speed and wreaked havoc in the training ground. His fists and legs did hurt a lot when he hit trees and rocks, but he could endure the pain and heal them later.

After opening the Gate of Opening, Fujin closed his eyes again and kept meditating. He was aiming to keep the Gate open for 5 minutes straight. He had barely missed on his previous try, reaching 4 minutes and 48 seconds. Hence, he was quite confident about it.

Slowly, the time ticked. 1 minute passed, then two, then four. Fujin felt a slight strain on his body, but it was nothing he couldn't bear. He stayed in his meditative posture.

Finally, the alarm sounded in his room. A smile appeared on Fujin's face. He met the conditions set by Guy. Almost immediately, he began bombarding the chakra point for the Gate of Healing.

Just like the earlier Chakra Point, this one resisted as well. Fujin continued bombardment. However, even after 30 seconds of bombardment, the chakra point didn't show any signs of giving in. Fujin stopped the bombardment and the Gate of Opening closed.

Fujin's breathing became rough. He thought, 'Well, this is tough. The resistance is much higher. However, that isn't an issue. The issue is that I have to keep the First Gate open. Only then can I try this. So I can only try this two or three times a day for 5 to 6 minutes each time. Looks like opening the Gate of Healing will take some time.'

Fujin got up and went to rest. He continued with the same training pattern. The only change was that he kept bombarding the second chakra point whenever he opened the Gate of Opening.