I am a movie director and I just received the following movie plot. Could you help me answer this question? If not, let me know by writing "Not answerable". Plot title: Rasen Movie plot: Following the events of Ring, the body of Ryuji Takayama, former husband of Reiko Asakawa and father of Yoichi Asakawa, is examined by his friend and rival, pathologist Mitsuo Ando. After he finds a cryptic note in Takayama's stomach, Reiko and Yoichi also turn up dead. Ando soon learns of a mysterious cursed videotape, haunted by the spirit of a murdered young woman. Rumor has it that anyone who watches the video will die exactly one week later. Despondent over the death of his own child, and believing that he is being guided by his rival's ghost, Ando decides to see the video for himself. After watching the tape, strange things begin to happen around him, and he soon discovers that the tape's restless spirit has different plans in store for him. With the help of Takayama's student, Mai Takano, Ando finds out more about Ryuji's past as well as the mysterious young woman, Sadako Yamamura. Searching for the truth about why Ryuji and Yoichi died from the virus while Reiko didn't leads him to her boss Yoshino. Yoshino lets Ando in on a secret: he has the wife's diary. She and Ryuji had been researching the cursed videotape. While Reiko had broken the curse, Ryuji died a week after watching the tape. Reiko believed that creating a copy would break the curse but Yoichi died a week after watching the tape, just as his father had. Yoshino shows Ando both the tape and the diary. When Ando tells Mai Takano what he's done, she is shocked and can't understand why, since she felt from the start that it was the video that killed Takayama and his family. As they are talking, Yoshino calls Ando. He admits that he wishes he'd never been involved in Reiko's business. Ando believes that Yoshino had watched the video, but he denies it saying that he was too scared to. However, Yoshino still dies. Ando decides to destroy the videotapes and make sure that he will be the video's last victim. He then confides in Mai about his son's death, and they end up sleeping together. Ando asks Mai if she'll be there with... My question: What did Yoshino have that was a secret?
The tape and diary