Shizune Seo

Seo Shizune is Kokuto Azaka's roommate, is the top student of her school and has a collie dog named Akira. Her family handles a wine cellar, she was introduced in the 6th chapter "Oblivion Recorder", but will take a prolific role in the novel "Gospel in the Future".

In reality Seo is not "just a regular girl" and her eyes can sometimes see future events; a fact that she usually keeps a secret in order to avoid being mistreated by those who would doubt of her ability. Due to her power she carries complex feelings, for example she is bad a studying, but with her power obtaining the first place in every school exam is easy as the image of the answers will automatically come to her. She also feels guilty since whenever she reads the future of a person that equates to read a part of that person's life without permission.... Her biggest complex is, however; that whenever she foresees a disaster, she can't mend it at all; she strongly believes as the future that she sees as absolute and unchangeable, and thus sees herself as someone "cursed" to witness events without been able to do anything about it.

Chronologically, she will become an acquaintance of Kokuto Mikiya before she becomes roommates with Azaka and before Shiki & Mikiya becomes involved with Shirazumi Lio's case. Mikiya will be the first person to change a future predicted by Shizune as she predicted the death of a collar worker and Mikiya managed to pull him out from the danger at the last minute. Due to this Seo will seek friendship with Mikiya and will disclose her ability and circumstances to him; Mikiya on his part will give her warm advices about how she should change the way she sees herself and how she handles herself, thanks to this Seo will develop a slight attraction for Mikiya...

... However, the moment she sees Ryougi Shiki Seo understands, not only with her powers; but herself as a woman understands that she can't "surpass" Shiki's strong presence and gain a side next to Mikiya's heart. Upon meeting Shiki Seo can predict that she will be the cause of his dead and decides to warn him (with no ill intention) that he should evade Shiki if he desires to live a long life. Mikiya, for his part, will tell her to stop her comments there; not because he thought that it was something insulting to Shiki, but because he didn't want to erase the possibility that he had to fulfill an important fate in his future... Mikiya understood perfectly that if he was going to push himself towards his own death then he was doing so for Shiki's sake, and thus he decides to proceed forward to that fate without backing down. Mikiya will later disclose to Shiki on how Seo Shizune's predicted that he might meet a hideous end if he stayed next to Shiki at the end of the seventh movie.

When Shizune actually meets Azaka for the first time and shakes hands with her, she actually predicts that they would become inseparable friends for all eternally and that they will have a marvelous time together. She thought that the fact that Azaka had the last name "Kokuto" was a coincidence.