There are many mysteries in the existence of Star Plasma Vessel.
The Kanji of 星漿体 (Star Plasma Vessel) is complex.
In addition, Star Plasma Vessel, Tengen, and Six Eyes are all connected by fate.
In this article, a native Japanese writer explained Star Plasma Vessel including the Japanese backgrounds.
What Is Star Plasma Vessel?
The Star Plasma Vessel is a human who is compatible with Tengen.
Tengen has the cursed technique of immortality, but not eternal youth, so he needs to transfer to a new body once every 500 years
This transfer of Tengen to a new body is called “merge” and the body Tengen merges with is called “Star Plasma Vessel”.
In the work, Riko Amanai and Yuki Tsukumo have appeared as Star Plasma Vessel.
The officials of Jujutsu High informed Amanai that she is a Star Plasma Vessel, when Amanai was young.
The official fanbook states that Tengen sensed the birth of Star Plasma Vessel and the officials of Jujutsu High informed Amanai the fact.
As the Star Plasma Vessel seems to be rarely born, so Amanai was monitored and brainwashed by the officials of Jujutsu High.
In fact, Amanai can’t freely go out, and she was imprinted with her historical mission to merge with Tengen.
By the way, if Tengen fails to merge with the Star Plasma Vessel, Tengen will evolve, which includes losing Tengen’s ego.
Gojo expressed it as, “So, becoming Metalgreymon is fine, but it’d be a problem if he became Skullgreymon. So we reset back to Koromon, right?”.
The original source of what Gojo said is Digimon Adventure.
Digimon Adventure
Koromon: Initial state
Metalgreymon: Evolve to be stronger
Skullgreymon: Evolve to be stronger but out of control
Since Tengen has increased the strength of the barrier technique in Japan, it is dangerous if Tengen lost his ego.
However, as a result, even if Tengen failed to merge with Star Plasma Vessel, he can still maintain his ego because he has a barrier technique.
This is the basic information about Star Plasma Vessel.
What Does 星漿体 (Star Plasma Vessel) Mean?
Japanese meanings of 星漿体 (Star Plasma Vessel) are below:
Japanese meanings of 星漿体
星: star
漿: slime, liquid, juice
体: body
星 and 体 are very popular Kanji, but 漿 is difficult to write even for a native Japanese.
And, the Kanji compound 血漿 means plasma, where 血 means blood.
In addition, Star represents Tengen in Jujutsu Kaisen,.
So, 星漿体 would represent the vessel of Tengen’s plasma.
Fate of Tengen, Star Plasma Vessel, and Six Eyes
It is clear that the Star Plasma Vessel and Tengen are deeply related.
In addition, Star Plasma Vessel is also related to Six Eyes.
In fact, Tengen said in Jujutsu Kaisen Vol. 17, “The Star Plasma Vessel, the Six Eyes, and I are all connected by fate”.
This fate probably refers to the appearance of the Star Plasma Vessel and Six Eyes at the same time when Tengen merges with the Star Plasma Vessel once every 500 years.
In fact, Kenjaku has secretly worked to evolve Tengen, but the sorcerers with Six Eyes thwarted Kenjaku twice.
In other words, there must be a fate that the the sorcerers with Six Eyes protects the merging of Star Plasma Vessel and Tengen.
However, Toji Fushiguro, who had escaped this fate through the power of restriction, defeated the sorcerer with Six Eyes, Gojo, and destroyed this fate.
It is still unknown why Toji was able to get out of this fate.
That might be because this fate was based on cursed energy and not applied to Toji who has high resistance to the cursed energy.
Many Star Plasma Vessels?
Toji destroyed the fate of Tengen, the Star Plasma Vessel, and the Six Eyes, so the Six Eyes were defeated and the Star Plasma Vessel died.
And Tengen failed to merge and lost his ego… It was supposed to be like this, but Tengen had a barrier technique, and was able to keep his ego.
This evolved Tengen is the new being who is both there and not there.
In other words, Tengen has no boundary as an individual entity.
So, Tengen maintains his ego maybe by creating this boundary through his barrier technique.
In addition, in episode 202 of the Jujutsu Kaisen, Tengen himself refused to merge with the Star Plasma Vessel.
The reason Tengen refused to merge was because the death of the Star Plasma Vessel, Amanai, was the providence of nature, so he surrendered himself to that.
So, the answer to what Tsukumo said, “Whether there was another vessel or another vessel was born. Whatever happened, Tengen is stabilized”, is that there were a substitute Star Plasma Vessels, but Tengen refused to merge and was stabilized by his barrier technique.
Postscript
This is the article about “Star Plasma Vessel Explained by a Native Japanese”.
Other articles explained the interesting and important issues in Jujutsu Kaisen.
Plese read them as well.
In addition, the Japanese version of this article is here.