"Accept rewards!" Sakura decisively said.
Ding! Congratulations to the Host for obtaining the Breast Meditation skill! By entering a meditative state, the Host will gain the ability to commune with the remnant traces of consciousness attached to the chakra the Host has absorbed, allowing the Host to learn the chakra's original owners' Jutsu, depending on whether the remnant traces of consciousness have a good impression of the Host. It is said that highly skilled shinobi can understand each other by exchanging blows; the Host can understand this ability to be fairly similar, only with much more yuri.
In other words, this Breast Meditation ability was sort of like the inside of a Jinchūriki's seal world. For example, Naruto's parents had sealed a little bit of their chakra within Boruto's dad, allowing him to communicate with them in case his seal was about to break.
"Am I, like, supposed to make friends with them?" Sakura asked the System, her face souring.
Obviously, Sakura was going to be making mortal enemies of many women by stealing their breasts, which meant that the remnant consciousnesses attached to their chakra wouldn't be likely to look favourably on her…
"Hold on," Sakura said slowly. "Is this even safe? Can't Orochimaru regenerate from minuscule pieces of his chakra and cells?"
Sakura, just like Sasuke, had a little bit of Orochimaru inside her, which was something she preferred not to think about.
All chakra sealed within the Host's breasts is secure.
Sakura trusted her useless System about as far as she could throw it; which was not very far indeed. In any case, it wasn't as if she could return the ability once she had gained it…
"Status," Sakura called out.
Naruto and Sasuke had slept through the entire fight, so she might as well have a look at her stats…
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Name: Haruno Sakura of the Breasts of Sukhavati
Species: 99% Human (with a 1% margin for error)
Age: 13
Bloodline Limit (Kekkei Genkai): Manyuu-Munamori Hybrid Physique
Chakra Capacity: 1.40 KK
Chakra Control: 1.77 S
System: Let's Aim to Become the Best Kunoichi, Kyuun~♥ Manyuu Chifusa Breast Flow System
Cup size: G (96cm)
Template progress: 7%
Known Jutsu: Transformation, Substitution, Clone, Genjutsu Release, Shadow Clone, Great Fireball, Body Flicker
Manyuu Hikenchou techniques: Manyuu Kenjutsu, Munamori massage
Chakra nature affinities:
Fire: 200%
Wind: 150%
Lightning: 99%
Earth: 99%
Water: 100%
Yin: 25%
Yang: 12%
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Sakura's chakra capacity had slightly increased while her chakra control had slightly decreased, but that was something she had got used to. Sudden changes in her available chakra pool would lower her ability to use all of her chakra as effectively as before, but that was only temporary; she only needed to get used to her new maximum by training a little in order to return to maximum efficiency. As a further bonus, her Yin chakra affinity had also slightly increased. Orochimaru dabbled in Genjutsu, but he was mostly focused on other types of Jutsu, so he hadn't trained this to the extent that a specialist would have.
At any rate, Sakura still had a little bit of time to waste until Naruto and Sasuke woke up, so she returned to their side and sat in the lotus position. Closing her eyes, Sakura wasted no time entering a meditative trance, and in her mind's eye, a few blobs of colourful lights shimmered into view, set against a backdrop of pure black nothingness.
The first lights were a cluster of small, dim flames: the chakra belonged to the first victims of Sakura's Breast Hunt, when she had first arrived in this world: the breast chakra from the bathhouse's old ladies. Much to Sakura's disappointment, there were no memories linked to these small blobs of fire nature chakra. The old ladies had all been civilians, even Yūhi-san, Kurenai's mum and Sakura's next-door neighbour.
In this world, chakra is linked to one's life force, so even civilians who don't know how to mould chakra possess some of it, because otherwise they would be dead. There is only one branch of humanity left on this star who possesses neither chakra nor chakra pathway system, and Sakura would soon be meeting the men and women forgotten by the Sage of Six Paths, within a few months…
Next up in Sakura's mind palace was a large, bright blue bubble: the chakra that had belonged to Gatō's mistress. When Sakura attempted to touch it with her mind, her mental probe was immediately scalded, forcing her to withdraw it. There was no intelligence behind this bubble of water nature chakra; there was only instinct, filled with pure hatred. For a woman of her career path to lose her breasts… It must have been a difficult blow indeed. In any case, there was no point interacting with this bubble of chakra further; its previous owner had also been a civilian, so she had nothing to teach Sakura.
The following glob of chakra was quite strange; it was a colourless orb, but a white snake was coiled around it: it was Orochimaru's and his host body's chakra. The white snake's eyes kept following Sakura's mental probe, which was quite creepy. She decided to leave that one for later…
And finally, there was an ephemeral, dark green wisp: Kin Tsuchi's chakra. Wind and Yin attributed, and Sakura's latest acquisition. After a moment's hesitation, Sakura reached out to it with a mental probe, and upon making contact with it, an illusory apparition of Kin Tsuchi appeared before her.
For aeons, ninjas had been using chakra to link their spiritual energies with their physical energies, allowing them to generate exponentially more chakra than the Sage of Six Paths had intended for them to possess; enough to weaponize it.
But now, just as the Sage of Six Paths had initially intended when he had founded Ninshū, the two girls' chakra had temporarily connected their spiritual energies together, allowing for Sakura's psyche to meet with Kin Tsuchi's mental imprint and attain a mutual understanding…
'So, it's true, then?' said Kin Tsuchi's imprint peacefully. 'Orochimaru was really going to sacrifice us to resurrect the Hokage of the past?'
The System was working overtime to prevent the secret of Sakura's transmigration from being revealed to the scrap of consciousness attached to Kin Tsuchi's chakra…
'If you can promise to find a way to save my main body, I'll gladly teach you all I know,' Kin Tsuchi's imprint continued, bowing deeply. 'Please, I don't want to die just yet…'
'I'll do my best,' said Inner Sakura hesitantly. 'But I can't promise I'll succeed…'
Kin Tsuchi's mental imprint nodded; that was the best outcome she could have hoped for.