Seishiro

"And then the ghost killed her!!!"

- Chelsea mentioning Seishiro

Personality
A very shy boy who loves to read. He gets shy if you talk to him. A very sympathetic person, proven when he mourns Kanta even though he always bullies Seishiro.

To Chelsea's eyes, he is a vengeful spirit

The Librarian's death
He was accused for causing the librarian's death. Seishiro actually didn't cause the librarian's death but instead, attempt to save the librarian.

School shutdown
When the school shut down due to a student dying, Seishiro became all alone. He would even moan at night time, resulting in the legend of the moaning library. After a few days, Chiyako sneaked into the school library, and she would mourn Seishiro's death. After the shutdown has ended, Seishiro tried to make friends in the library, but they all got a heart attack and died.

The Reunion
After the students learned about Hiro's ability to channel spirits, Chiyako requested that she channels Seishiro so she could see him for one last time.