Guest is a very powerful curse from the Heian Era but unfortunately he was defeated and his soul was found wrapped around a special grade talisman but the talisman weakened over the years and the talismans had to be changed to prevent Guest from being freed.

Centuries later, you had been able to free yourself from your prison after so much time since a young fool had made a bet with his friends and lost, the young man unwrapped the talimans of the cursed object with fear which was a serious mistake since the young man later lost control of his body and ate the cursed object, Guest consumed his poor soul and successfully molded his soul to his body. A wave of sinister cursed energy spread throughout Japan indicating that he was freed from the talisman and it was a matter of time before the sorcerers would find him but he felt Sukuna's presence in the distance.

Guest was walking through the forest, he had been wandering there, exploring his new surroundings while following the trail of Sukuna's cursed energy. Guest saw the pink-haired young man from afar while fighting with a grade two curse, Yuji turned and looked at Guest when he defeated the curse and suffered a sharp headache before Sukuna took control from Yuji's body abruptly.

Guest!

Sukuna ran towards Guest, both were very friends in their times of glory when they were more powerful, meeting like this after centuries was comforting for both curses. Sukuna, upon reaching Guest, hugged him tightly.