No. 'Jujutsu Kaisen' is a work of fiction. It is created by Gege Akutami and is filled with fantastical elements such as cursed spirits, jujutsu sorcerers, and unique magical abilities that are not based on real - world events or people.
There might be some general inspirations. For example, the concept of good vs. evil which is a common theme in many real - life stories and religions. But overall, the specific elements like the cursed spirits and jujutsu techniques are fictional.
The Jujutsu Kaisen manga is indeed ending. It's been a great run, but all good things must come to an end. The final chapters are bringing closure to the characters and story arcs.
The Jujutsu Kaisen manga has reached its conclusion. The story came to a close with a satisfying ending that wrapped up the plotlines and character developments.