Kamui

"Twelve Divine Maidens mission?"

Shin silently opened the system in his mind and saw the main quest written at the very top: Become the ultimate boss of this world and unify the globe. Reward: Ownership of the Naruto world! Time limit: Until the plot ends. Failure: Erasure!

Following the main quest was a line of smaller text: Side quest: Assemble the Twelve Divine Maidens. Unlock quest item: Divine Maiden Contract. Time limit: Same as the main quest. Failure: Erasure!

Beside the quest, there were some papers that looked like folded contracts. He counted them silently; there were exactly twelve.

"So this is the so-called Divine Maiden Contract, but how do I take it out?"

As the thought crossed his mind, Shin's hand suddenly felt heavy as a stack of papers appeared. They felt soft to the touch; although they looked like paper, they were completely different and incredibly durable.

He held them up to his eyes. The text written on them looked like tadpoles, somewhat similar to the seals he used for the Flying Thunder God, and while he didn't recognize the characters, he could understand the intent behind them.

This contract is a high-level master-servant pact that can only be used on females. Once a female signs her name at the bottom, she automatically becomes the property of the contract holder. The holder can command them to do anything, but it will not alter their original personality or mind.

For example, if someone deeply resented the holder, they would still resent them after signing, but they would be unable to disobey the holder's commands or commit any act that would harm the holder.

Note: It only takes effect when the female signs voluntarily. Host, please use this wisely.

"Good stuff."

Looking at the description, Shin felt a thrill. If he could get Tsunade, Mei Terumi, Hinata, and the others from the original story to sign these, the scene would be too beautiful to even imagine.

"The only downside is that it requires the woman to sign voluntarily. Which woman would willingly become a slave? That part is a bit troublesome."

Pondering this, Shin carefully put the contracts away, frowning as he thought, "Carrying these around is a hassle. If they get destroyed by an enemy's Fire Style during a fight, that would be bad. Besides, I need to carry a large number of Kunai for my Flying Thunder God. Even though I have two small ninja tool scrolls attached to my wrists, the capacity is limited—only about a hundred or so. If I go to the battlefield in the future, that might not be enough."

"And carrying that Heaven Cloud Sword of mine around every day is uncomfortable too. If only I had a personal storage space. In the original story, the only one explicitly mentioned to have a personal space was Obito Uchiha's Kamui. I have enough points, but I already have the Flying Thunder God, so Kamui isn't an urgent requirement."

After thinking for a moment, he asked, "System, is there anything like a storage bag?"

After a moment of silence, the system's calm, emotionless voice rang out: "Mangekyo Sharingan pupil technique, Kamui, comes with its own space. Ninjutsu rank: S. Requires 10,000 points. Requires Mangekyo Sharingan to redeem. Detected that the host has Three-Tomoe Sharingan; can force-redeem for 5,000 additional points. Points are sufficient. Redeem?"

"No!"

Shin shouted in his mind. Are you kidding? He had worked so hard to kill two jonin to earn 10,000 points; if he spent it all on Kamui just like that, he would cry himself to sleep.

"Is there no other way to have a portable space besides Kamui?" Shin was still unwilling to give up. If he had a portable space, many things would become incredibly convenient.

"Scanning host... Ding... Detected the Flying Thunder God technique. Can spend 5,000 points to open a personal space. The size of the space is related to the host's strength."

"Profiteer."

Hearing that it cost 5,000 points made his heart ache; that was equivalent to the reward for a jonin. However, thinking of the convenience of a personal space, he gritted his teeth and thought, "Open the personal space."

The system fell silent, and immediately, a warm current—different from when he learned ninjutsu—flowed through his body. A moment later, Shin noticed his points had decreased by 5,000, and he felt a strange connection to the space beside him.

With a thought, a spatial rift opened beside him. Shin looked inside; it was about three square meters, had no air, no sense of time passing, and could not hold living things.

"Not bad." Shin nodded, placed the contracts inside, and with another thought, they appeared back in his hand. It was incredibly convenient.

After tossing in many Kunai, shuriken, and Explosive Tags, Shin closed the space.

"Alright, now it's finally time to redeem a Mangekyo pupil technique. I went through all that trouble hunting down that Blood Ninja just for this moment."

In the original story, the various Mangekyo abilities were heaven-defying, and mastering one would provide a qualitative leap in strength. Shin silently navigated the system to the ninjutsu redemption interface and found the Mangekyo section.

Amaterasu, Tsukuyomi, Flame Control Kagutsuchi, Kotoamatsukami, Kamui...

Looking at the techniques one by one, Shin was incredibly tempted. "I want them all, but I only have enough points for one. This is so frustrating."

At this moment, conflicting thoughts raged in Shin's mind. "Should I pick Amaterasu and just agree to join Madara on the battlefield? Although Amaterasu's track record in the original story was a bit lackluster, it's great for clearing out small fry. I'll just stare at everyone on the battlefield with my Sharingan—that's all points..."

After much deliberation, he dismissed the idea. For now, Amaterasu wasn't strong enough and could easily be dodged by powerful opponents using the Substitution Technique. He would save it for later.

Tsukuyomi was also ruled out; a genjutsu that required close-range eye contact was something he couldn't handle with his current strength.

Kagutsuchi... don't even joke about it. He didn't even have Amaterasu yet; redeeming this would be a waste of points. Ruled out.

Kotoamatsukami!

Seeing this, Shin's breathing quickened. Kotoamatsukami—the strongest genjutsu in the original story, capable of unconditionally issuing any command to a person, including making them a slave. It was an unreasonable ninjutsu.

For a moment, Shin really had the urge to ignore everything and just redeem it.

But he held back. The effect of Kotoamatsukami looked beautiful, but in reality, it had obvious flaws. Not to mention its ten-year cooldown, which essentially made it a one-time-use technique.

Furthermore, it was another technique that required eye contact. Shin imagined the scene if he redeemed Kotoamatsukami and tried to hypnotize Uchiha Tajima.

An elite like Uchiha Tajima had the keen instincts of a veteran who had fought on the battlefield. If he approached recklessly and showed even a hint of wanting to control them, he would likely be met with a lightning-fast sword strike. Even if he escaped using the Flying Thunder God or a Crow Clone, he would be a fugitive from then on, carrying a bounty from the Uchiha clan.

Thinking of that, Shin shook his head. Honestly, his strength was too low; controlling a Kage-level figure was something for the future. Besides, 15,000 points wasn't that hard to earn.

As for Kamui, he already had the Flying Thunder God, so it wasn't an urgent need. Ruled out.

As for Kamui's space-severing ability, he currently lacked a powerful offensive method. The Rasengan had limited threat against elite jonin and above, so the space-severing ability would perfectly compensate for that. Moreover, the Warring States period had little defense against such bizarre ninjutsu; if used suddenly, he might be able to kill a peak jonin, or even threaten a Kage-level ninja.

"System, redeem Kamui."

"Kamui, Mangekyo pupil technique, rank S. Requires 10,000 points. Requires Mangekyo Sharingan. Detected that the host has Three-Tomoe; can spend 5,000 additional points to force-redeem. Points are sufficient. Redeem?"

"Yes!"

When Shin saw his points drop to zero, a hot current surged into his left eye, and a searing heat rose in his right eye, only fading after a long while.

Shin opened his eyes. The Three-Tomoe in his left eye looked even more eerie. He grinned; he was probably the first ninja in history to use a Mangekyo pupil technique with a Three-Tomoe Sharingan.