"Instead of making Tengen Amanai, I can make Amanai Tengen."
As I said that, Tengen frowned and Tsukumo nodded.
"Let's do this. This hag is useless anyway. Though just to be sure, Amanai will retain her sense of self and Tengen's skills and memories, right?"
"Yes."
Afterall, Teruhashi is still Teruhashi despite so many souls with the whole memories of their entire sets of past lives. The memories are just information without ego.
And Miyako-chan isn't acting like the Spider Cursed Spirit as well, even though she has its memories of trapping and eating people.
"It's like seeing a horror move in 1st PoV with high quality VR."
With what actually happened to Miyako-chan, horror no longer scares her.
And since the shape of her soul became identical to her vessel again after being a Cursed Spirit, there shouldn't be much side-effects.
But in any case, I will be able to manipulate memories in around half a day.
Tengen didn't look convinced.
"It's better to just protect—"
"Tengen, do you even know how many people's self of sense have you buried inside yourself by merging with them? You have lived for so damn long already.
Moreover, since you yourself said that you are more like a Cursed Spirit, I can't trust you with the fate of the Jujutsu World.
What if you run amok?"
"My barriers—"
"In the end, you are the one maintaining it, not someone else. You are more Cursed Spirit now. What if you decide to stop maintaining the barriers one day?
Breaking Gojo Satarou's seal will take a long time. Who knows how many countries enter Japan in the meantime and how many people they kidnap for experimentation.
To save Japan and make sure that you don't turn on us in the future, this is the best way possible.
Moreover, don't you feel responsible for Amanai's pitiful life and death because of you?
Or your thinking has already shifted to a Curse and you don't care?"
Tengen sighed and took out the back of Prison Realm, and handed it to Yuta.
"Okkutsu, do you trust them? One has taken over the body of Yamata-no-Orochi, and the other is a hybrid of a Cursed Spirit and Human."
"Well, I was also designated as a Cursed Human once. So like Gojo-sensei, I will trust them."
Tsukumo continued taunting Tengen, "Isn't binding vows the fastest way to establish trust? Why are you hesitating?"
Tengen sighed, and then looked at me.
"Alright. Let's make the binding vows."
So after the required binding vows, A casket and Tengen's body inside a tree-like thing appeared.
I opened the casket, and it had Amanai Riko's preserved body. It was a bit degraded, but I removed the degradation by manipulating her body.
Adaptation is just too good of an ability.
Then, I used my Cursed Technique.
"Save a cat, get hit by Truck-kun."
"[Reincarnation]!"
I used my Cursed Technique, and Amanai Riko's soul returned to her body.
She opened her eyes, and muttered, "Huh!? I am alive!? Wait, why am I in a casket!? Did I just wake up in my funeral!?"
She started freaking out, and Tsukumo tried to calm her down.
"You have been revived."
"Oh."
"...That doesn't make any sense!?"
I was getting impatient, so I explained it to end this quickly.
"Some bad things have happened, but I have revived you with my Cursed Technique. I will now make you Tengen, and I promise that your sense of self will not be erased, and you will remain in your body. This will be different from the Merger you were about to go through."
"Ah..."
"Do you agree to it?"
"So... I will remain... me?"
"Yeah. Though you will get Tengen's memories as well, and it will like a high quality VR movie in Tengen's PoV, without any ego or such.
But if you don't want the memories, I can fix that as well in some time."
She looked around, and her eyes landed on Tengen.
"Something bad has happened, right? Where are Gojo and Geto?"
"Geto is dead, and Gojo is sealed."
"...Then I agree!"
She resolved herself pretty quickly for a kid.
Since she has agreed, I extended one of my hands to reach Tengen's body, and the other on Amanai's head.
"Tengen, the barriers will hold even if you don't constantly maintain them, right?"
"Yeah. Just acting as a supply of Cursed Energy will do the job. And there is a backup supply in place as well."
I nodded, and reincarnated Amanai into Tengen's Cursed Spirit body, and reincarnated Tengen herself into Amanai's hairband.
Amanai's body became empty, and she became Tengen. The projection of Tengen disappeared.
Then, I reincarnated Amanai back into her body, and her Cursed Spirit body flew into her body and reincarnated perfectly.
Since her soul's shape automatically changed to be like her body, she most likely wouldn't run amok.
She opened her eyes, and Tsukumo asked her, "Are you Amanai Riko or Tengen?"
"Eh!? I am Riko! I don't feel particularly different in my mind, but I have got this energy, and like a bunch of memories lying around like a NEET."
Tsukumo sighed in relief, and then whispered to me.
"You did a good thing reincarnating that hag as a headband."
She noticed!? She can see souls!?
"Anyway, let's start freeing Gojo."
Yuta handed me the back of Prison Realm, and said, "I will go and rescue Teruhashi-san."
"Mhm."
I nodded, and Yuta left.
Now, only me, Miyako-chan, Tsukumo and Amanai remained, along with the back of the Prison Realm.
I took out my Kusanagi Sword from my wrist, and started hitting it continuously, adapting to replicate Angel's Cursed Technique.
It's still a rather complex technique. Even something as simple as Sukuna's slashes took Mahoraga several hits to adapt, and he can most likely adapt to things much faster than me, given that I only have two heads of Yamata-no-Orochi.
So, if I have to guess...
"Gojo Satarou will be free in day."
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