Yin Seal: Stage Three

Sakura had even planned out the experimental base.

It was built in the Land of Snow, a place secluded enough for her to hide her secrets without fear of being discovered by the enemy.

The only thing that hasn't been achieved yet is cloning technology. But that's okay, she's medical-nin and has Chakra to assist her, so developing cloning technology from scratch and creating clones shouldn't be too difficult.

However, Sakura still treated this idea as a joke. She thought that cloning technology didn't exist in Hokage. If she really wanted to develop it herself, who knows when that would be? At least let her finish developing the two half-finished products she had on hand first.

However, what she didn't know was that the Hokage world was full of advanced technology. In the Hokage sequels that Sakura hadn't seen, clones had already begun to appear. In fact, the mad scientist Orochimaru had already begun researching cloning technology...

However, cloning technology can not only be used on this modified Yin Seal, but also for the advanced development of Cherry Blossom Impact - in the later stages of this technique, Ice Clone may not be enough, and real bodies will have to be used for testing.

Therefore, Sakura Haruno is determined to acquire cloning technology.

She had many ideas in her mind, many of which required testing on real people.

She'll start researching cloning technology sooner or later.

However, Sakura also has to admit that simply using clones to enhance the power of the Yin Seal is only the most basic modification of the Yin Seal. After all, doing so doesn't actually affect the core runes of the Yin Seal.

If it ends like this, then she's really underestimating Sakura Haruno.

Let's broaden our thinking a bit more.

Why must Chakra be stored? A person's Chakra is finite. Even if multiple clones are combined, it won't be much, since clones haven't undergone training, are inherently weak, and can only generate a small amount of Chakra.

So, is there a way to convert other forms of energy into those crystals and store them, then convert them into Chakra that ninjas can use when needed?

It is theoretically feasible.

Sealing Jutsu are incredibly powerful, capable of sealing most Ninjutsu and energy within scrolls for safekeeping. They can even seal away pure energy forms, so absorbing a tiny amount of external energy is naturally no problem for them. Although Sakura hasn't studied Sealing Jutsu in depth yet, she firmly believes in this.

As for how to convert external energy into storable crystals, that's probably a difficult point, but it's not a pipe dream either. We'll leave that for later when we study Sealing Jutsu in more depth.

If we call the Yin Seal that uses clone Chakra the Stage Two Yin Seal, then the Yin Seal modified to this extent should be the Stage Three Yin Seal.

What kind of energy can the Yin Seal in Phase Three absorb—for example, the energy of lightning in nature?

A single lightning bolt generates 1 billion watts of electricity, with an average energy of 5 billion joules. Sakura Haruno envisions using the Yin Seal to absorb and transform this electrical energy into Chakra energy. The amount of Chakra obtained in this way would be enormous; without considering losses, it would be roughly equivalent to the energy of a Lightning Blade.

A summer thunderstorm can sometimes produce up to ten thousand lightning strikes, all of which are stored in the Yin Seal. Converting them into Chakra is enough for her to unleash a barrage of various A-rank Ninjutsu several times in a row.

However, this is not the limit.

The energy of a single lightning strike is equivalent to only 1400 kilowatt-hours. A large-capacity thermal power plant can generate over ten million kilowatt-hours of electricity, more than ten thousand times that of a lightning strike. In other words, the energy supplied by a single power plant is equivalent to a stable thunderstorm every 365 days a year...

The electricity generated by the power plant is stable, long-lasting, and has a large energy output. If Sakura can develop the Yin Seal of Stage Three, this kind of electricity would be the perfect choice.

Of course, these are all ideal scenarios that do not take into account losses.

However, even with a loss of up to 90%, meaning only 10% of the energy is preserved, the energy that the Yin Seal can store is still terrifyingly large.

While reviewing the materials, Sakura frequently came across information about how many older generations highly praised Hokage from Hashirama Senju's generation. The aftershocks of their battles were said to be more terrifying than modern large-scale Ninjutsu, and their fights often permanently altered the terrain of an area. For example, the Valley of the End, where they fought, was originally called Departure Mountain...

The question is, once her Yin Seal: Stage Three is fully developed, will she be able to leave behind a legendary legacy like the First Hokage?

Perhaps then, we can summon the First and Madara Uchiha through Impure World Reincarnation and have them fight again... to see if her Ice Release and Water Release are stronger, or if Hashirama Senju's Wood Release or Madara Uchiha's Sharingan are stronger!

By then, she should have completed:

Cherry Blossom Impact: Stage Three, Demonic Mirroring Ice Crystals: Stage Three, Yin Seal: Stage Three, these three "Stage 3" Ninjutsu respectively enhance her reaction speed, battlefield movement speed, and endurance;

Water Release: Wind Blade Torrent – this technique could also be called Water Gun Technique: Stage Three is also acceptable – it is her main damage-dealing skill;

Sakura Haruno's Nintaijutsu, combined with the Demonic Mirroring Ice Crystals: Stage Three, is another Minato Namikaze using Monstrous Strength Technique.

And a wide variety of defensive and offensive Water Release and Ice Release, used for probing and executing various tactics.

At this point, her Taijutsu, Ninjutsu, Chakra reserves, reaction speed, movement speed, offensive and defensive capabilities had all reached limits that are difficult for ordinary ninjas to imagine...

Of course, this isn't the limit of Yin Seal Light...

However, all of this was just a mirage before she learned the Sealing Jutsu; all the stages of the Yin Seal were merely illusions.

So, after the girl indulged in her fantasies for a while, when the beautiful dream in her mind vanished and she was returned to the harsh reality, looking at the thousands of Sealing Jutsu written before her, she suddenly felt—

Let these daydreams remain just that – dreams.

Just looking at all those techniques gave her a headache. She simply didn't have the courage to go on and tackle the Sealing Jutsu Tsunade, which were almost as tall, after having already devoured the stack of Medical Ninjutsu books Tsunade had given her that could reach her chest...

And she's been very busy lately.

Besides the tasks Tsunade was about to assign her, she also needed to develop two Ninjutsu, continue learning medical knowledge, and hadn't finished learning the Ice Release she brought back from the Land of Snow. She had a mountain of things to do, and unlike Naruto, she couldn't use multiple Shadow Clone at once to speed up Ninjutsu development...

The modified Ice Release: Demonic Mirroring Ice Crystals, which is its second stage, has been mostly figured out. There's not much work left, and Sakura will definitely focus her energy on it for now. Otherwise, leaving a Ninjutsu that's 99% complete in development sitting there would drive a perfectionist crazy.

Next is Cherry Blossom Impact, which has recently hit a bottleneck. She feels that she has done everything she should and there have been no major mistakes, but the result is not ideal, only slightly better than the first stage. In her expectations, the second stage of Cherry Blossom Impact should at least cut the reaction time required in the first stage in half again.

Completely baffled, she finally submitted the question to her Master Tsunade, hoping to find out what the old lady's opinion was and where Sakura had gone wrong.

In short, this technique is unlikely to yield results anytime soon.

Before completing these two Ninjutsu, Sakura absolutely cannot start a new project and devote a lot of time and energy to it.

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