"My god!"
"What in the world is that!!?"
"Hiss!"
Everyone entered Sora's laboratory.
Seeing the scene inside, they all gasped in shock.
It wasn't that Sora's lab had taken a turn towards Orochimaru's style today, but rather the thing suspended in the center of the lab was too horrifying!
In the center of the laboratory, a massive water sphere hung suspended.
On the surface of this water sphere, various incomprehensible runes flickered and moved.
The runes interconnected, forming two rings.
These two rings acted like restraining belts wrapped around the sphere.
Up to this point, it wasn't particularly strange. Who among Kirigakure's Ninjas hadn't fought their way through mountains of corpses and seas of blood?
To put it in a somewhat Lovecraftian way, their sanity stats were high, and their tolerance was strong.
But the problem was that the thing before them was genuinely unorthodox, heretical.
Inside the giant water sphere, human faces constantly flickered in and out of existence. A familiar yet unfamiliar face continuously wailed, making various expressions.
Simultaneously, within the water, multiple limbs would often materialize, and it was common for errors to occur during this process, like eyes growing on the hands and feet.
Seeing such a scene, even the relatively brave Fuguki couldn't help but take half a step back.
Seeing this, the corner of Sora's mouth twitched slightly.
The thing suspended above everyone's heads was none other than Hozuki Mangetsu.
However, Mangetsu's current appearance wasn't because Sora was actually cosplaying Orochimaru, but because he was conducting final tests.
It was like building an airplane and needing to test it like those Kamikaze Warriors… though not as exaggerated or factually incorrect as in that case, the fighter's performance must be tested thoroughly.
To test the performance to the limits, even fatalities could be acceptable.
After all, only by uncovering all problems today could they prevent more serious issues from arising later.
Currently, Mangetsu was the test pilot for Yuki Sora's Blut Arterie and Blut Vene.
Since these were essentially cursed seals applied to the human body, Sora needed to know if Blut Arterie and Blut Vene would fail under certain extreme conditions.
And for determining under what specific conditions they might fail, Mangetsu, with his ability to liquefy and transform his body, was the perfect test subject.
By now, the testing had been going on for some time.
The results were very satisfactory to Sora. His design was very good, and Mangetsu had no issues.
Therefore, seeing that the others were somewhat confused and even fearful, only staying put due to their past respect for Sora, Sora finally shut down the restraint device holding Hozuki Mangetsu.
Splash, splash, splash-
A large blob of water, resembling jelly, poured down from above everyone.
Then, Meigetsu stepped forward and gently placed her hand on the liquid.
Her clan's secret technique was activated, and Mangetsu rapidly resumed his human form.
However, although Mangetsu had regained his human shape, he remained unconscious from the earlier tests.
Seeing this, Sora beckoned for Rin to come over and take Mangetsu away for treatment.
This was also why Sora had called Rin here today.
After watching Mangetsu being led away, everyone fell silent for a moment, clearly still stunned.
But at this point, the advantage of the three women who had been intimate with Sora became apparent.
Fuguki, Yagura, and the others didn't dare ask questions, so they looked towards Meigetsu, Mei, and Kurumi.
Seeing this, although they themselves were also a bit apprehensive, Mei and the other two didn't say much.
"Sora, what exactly is..." Meigetsu stepped forward and asked.
"A certain test. It's over now!"
Sora quickly explained: "Don't worry, Mangetsu was just testing under extreme conditions. Only after he passes can I apply this thing to you all!"
"It's fine now. The facts prove that my Blut Cursed Seal are fine!"
"Is that so..." Hearing Sora's words, everyone finally felt relieved.
"That's good!"
After letting out a sigh of relief, although they still didn't fully understand the Blut issue, they could now ask.
"Sora, what exactly is this 'Blut' you mentioned?" Mei asked.
Sora explained: "I don't know if you remember, but sometimes, I can take blade strikes directly with my body, maximizing defense."
"Other times, I can become immensely powerful in an instant, slashing with my sword to create spatial vibrations!"
"And Blut, specifically Blut Vene and Blut Arterie, are the states I was in during those situations."
"Now, I've converted these two states into seals and plan to apply them to you!"
'So that's how it is!'
Hearing Sora's words, everyone's eyes lit up!
"That kind of state can actually be artificially created?!" Everyone was deeply shocked.
Then, an incredibly fanatical feeling surged from within their hearts!