The first part of a script is usually called the first act or the prologue. It is the beginning of a novel story, where the protagonist appears to introduce himself and the background of the story.
In this scenario, the first scenario could be an adventure story. The protagonist could be a brave adventurer who discovered a mysterious treasure during an expedition and decided to take the risk to find the treasure. In this script, the protagonist may encounter various dangers and challenges, but in the end, he will successfully find the treasure and leave this place.
In addition to an adventure story, the script could also be a love story. The protagonist could be a young artist who met a beautiful girl in the process of pursuing his dream. They are attracted to each other, but the protagonist must choose between pursuing his dreams and maintaining his dignity. In this script, the protagonist may face all kinds of difficulties, but in the end, he will realize his dream with the girl.
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.