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.
Jujutsu Kaisen is not based on a true story. It's a completely fictional work with its own unique plot and characters crafted by the creator's creativity.
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.