One year before the events of Jujutsu Kaisen, located in central Kyoto. Yoshimori [Y/N] experienced the firsthand actions of curses. Frustrated with his friend's "accidental" death, he was brought to Kyoto Jujutsu High School in order to learn how to exorcize curses. Now armed with his very own cursed technique, he sets out to fight against the true causes of Japan's mysterious disappearances. As you can see, this is a self-insert book. This story takes place around the same time as JJK 0, hence the book title. Though my story is mostly original, the Jujutsu Kaisen series fully belongs to Akutami Gege and Jump Comics. Keep up the good work, Akutami-sensei! Enjoy reading!