The Daidoji Mirror has been able to see ghosts since I can remember, and it can also see the "fate lines" between people. Grandma said this was the blessing from the gods brought by Abe Seimei's bloodline, but Kagami just wanted to be an ordinary person. She hid her abilities and worked hard to get into Teikou Middle School, but on the first day she bumped into the ghost in the century-old school building, and Akashi Seijuro who could observe the lines on her body - "You have no lines on your body." "You have two lines on your body."
When she returned to Yahara during the summer vacation, she met the young boy Natsume Takashi who could also see; when she went to her grandfather's house, she bumped into the obsession of the thousand-year-old chess player Fujiwara Sawei at the Go club; when she passed by Yoneka Town after school, she bumped into the translucent hand on Haibara Ai's shoulder - Miyano Akemi's soul was guarding her sister. She could see all the threads that should not be forgotten. Her catchphrase was originally "I just want to be an ordinary person", but later it was changed to: "Forget it, you two are more normal than ghosts."
Purpose: Reflecting the regrets and fetters of others is not to become a hero, but to accept the true self.