Shino Akai is a ghost collector. She is obsessed of collecting ghosts. One day,
Kazuki was walking outside and Shino came and frightened him. Then
Kazuki got caught and was sent back to class.
Later, Kazuki got all sad and went under the willow tree and saw Shino again. This time Shino takes Kazuki into an abandoned school, and while they were having tea, Shino says that she wants him. Then Yuna, Kuriko, and Rin came in, so Shino gives Kazuki a kiss on the right cheek, leaving her lipstick behind so she can try and get Kazuki back to the abandoned school.
When Kazuki came back, he went into a room with all the ghosts caught, and Shino was trying to get Kazuki and add him to her ghosts collection. Then the girls came back again, and Dr. Akai, too. Dr. Akai claims Shino is his little sister. So later Shino becomes Dr. Akai's assistant.
