Kanagawa Prefectural Riko High School.
Miwa Chisei wore a schoolgirl uniform obtained through special channels and black-framed glasses, her long silver hair twisted into an inconspicuous bun.
This was the school attended by the boy named Junpei Yoshino. As he was a lead in the case, Chisei wondered whether he had any connection to Mahito.
The case involved a special grade cursed spirit, so sending Yuji Itadori and Kento Nanami into action without proper preparation was hardly the right decision.
Thus, Chisei decided to gather information herself, then pass it on to them.
The seemingly peaceful hours after school were when the clubs came alive.
Chisei sat comfortably in a leafy tree, concealing herself. The second-floor room beside the tree was a clubroom, where Junpei was sharing something with his fellow club members.
Through the gaps between the leaves and the glass window, Chisei saw the boy's innocent, unguarded smile.
He looked just like any ordinary high school student.
But that peace was soon shattered. Another group apparently barged into the room, and an argument broke out between the two sides.
Rather than an argument, it was one-sided bullying. The tall, burly intruders began destroying the movie discs the club members had been sharing, angrily telling them to get out of the classroom.
It looked like a fight over a clubroom, something that would never happen at Jujutsu High.
Junpei's two fellow club members seemed to have been driven off by fear and threats, leaving him alone in the room.
The rather skinny boy tried to retrieve a disc trapped beneath someone's foot, only to be kicked into the wall.
Chisei had been leaning against the tree, but she straightened slightly at the sight. She was curious how the boy would handle what came next.
The clubroom door had already