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· After the Shibuya Incident, Gojo was sealed, and on October 31, 2018, the 3rd Shibuya Incident was held. Kenjaku told Sukuna he would return, mentioning the golden age of jujutsu in the Heian period.
· The author showed signs of depicting the past jujutsu era by featuring characters from the Heian and Edo periods, when Sukuna was active in the original work.
· However, contrary to expectations, the Heian period was not covered in the Jujutsu Kaisen mobile game. This video delves into the foreshadowing related to the Heian period in Jujutsu Kaisen.

· The Heian period was about 1,000 years ago in Japan, and 400 years ago was called the Edo period. In comparison to Korean history, it corresponds to the Goryeo and Joseon dynasties.
· During the Goryeo dynasty, Kenjaku attempted to unify the world but was defeated by the Six Eyes sorcerer at the time. Questions arise as to why characters like Gendōrin, Sukuna, and the cursed spirit Uro, who lived then, appear in the modern day and participate in a death game.
· This can be inferred from Uro's dialogue in Volume 2 of the Jujutsu Kaisen original work, during the Sendai Colony arc. It states that Kenjaku, who was persuaded by Uro and lived in the Heian period a thousand years ago, attempted to evolve Tengen by killing the Six Eyes sorcerer and a one-month-old growth body 500 years later, but failed.

· The story of a one-month-old Six Eyes and a growth body attacking Kenjaku and merging with Tengen is debatable. Growth bodies appear frequently regardless of age, and even sorcerers without Six Eyes often appear without them, but it's questionable that a Six Eyes originated from one of the sorcerers who suddenly manifested it.
· Kenjaku, forced into a break, realized that killing the Six Eyes might just cause another to appear from someone else. After trapping Gojo in the Prison Realm, he released the sorcerers he had made contracts with in the past and initiated the 3rd Shibuya Incident.
· The participants of the 3rd Shibuya Incident are largely divided into two types. The first are modern-era players like Itadori, Megumi, and Yuta, and the second are reincarnated players from the past era like Iori, Uro, and Sukuna.

· The reincarnated players from the past era include Ryomen Sukuna, Kenjaku, Uro Takako, Hajime Kashimo (the God of Thunder), and Yorozu, who possessed Megumi's sister, Tsumiki. (Excluding Sumo)
· Kenjaku wasn't simply reviving old figures to start a battle royale. The sorcerers from the past who participated in the 3rd Shibuya Incident were all top-tier figures in their respective eras. In other words, Kenjaku had been collecting monsters from each era for a thousand years.

· Kenjaku's goal is the assimilation of humanity and Tengen, and whatever is born from it. However, simply mixing ordinary humans wouldn't produce the desired level of cursed energy, so he needed abnormally strong sorcerers – the remnants of the past, the golden age of jujutsu. The Heian period was the pinnacle of that golden age.

· There are signs that the author intended to portray the Heian period not just as an ancient era, but as a Sengoku-like period for jujutsu. Sukuna's very being was described as a human with four arms and two faces, yet even the sorcerers of that time couldn't kill him when they combined their strength. Instead, his fingers became special-grade cursed objects after his death, persisting for a thousand years. Sukuna can be considered a human-shaped cursed object.
· Even more surprising is the continuous foreshadowing that Sukuna, rather than being a lone wolf, operated within the Heian sorcerer society. Uro's Fujiwara foreshadowing, Yorozu's obsession, the Angel who seems to have directly confronted Sukuna, and Kenjaku's reaction all suggest that the Heian period wasn't just Sukuna rampaging alone, but an era where monsters fought each other.

· The biggest mysteries of the Heian period are Fujiwara and Sugawara. It's puzzling why the names of noble families from a thousand years ago are suddenly mentioned repeatedly. Uro sought to oppose the Fujiwara, who used her as a pawn, and Yorozu also gives off a strong aristocratic vibe. Modern noble jujutsu families like Gojo and Zenin seem to be an extension of the Heian aristocratic structure.
· In essence, the author likely intended to explore the power structure of Heian jujutsu society, its aristocracy, and its relationship with Sukuna. However, what readers received was not an epic Heian saga, but a love story between Miguel and Sukuna.

· Looking at the foreshadowing mentioned earlier, it seems the author didn't intend to leave them unresolved. However, starting with Yorozu, many characters obsessed with love were introduced, and although the Heian foreshadowing and Pheromone foreshadowing were dropped, there was no conclusion.
· Karaoke Eisou has been released, but due to the burden, it will be uploaded when the subscriber count reaches 5,000.