Can you tell me the history of Sadako?

Sadako is a ghost name in Japanese horror movies, and several films have been made in one * * *. The story is roughly as follows:

Sadako's haunting comes from the midnight bell in the first episode. Ryuji and Asakawa are told that they have found the ancient well and Sadako's body in the video box. Sadako's haunting begins with Sadako's body.

Asakawa's colleague Okazaki took his place after Asakawa disappeared. He began to try to trace the video. What's more, he found another college girl, Xiang Miao, who watched the video and gave it to Okazaki, who let him watch it. Okazaki went because he was afraid. .......

On the other hand, in order to track down Sadako and other people who died strangely, the police are also looking for the whereabouts of Asakawa Reiko Kobayakawa everywhere, and Mai Takano is also trying to know the truth, so everyone doesn't? And both of them are looking for traces of Reiko Kobayakawa and Yeung Yi, so irrelevant people are linked together. In the process of tracing, Mai Takano found Yami (a female college student who witnessed the murder of Sadako and Naoko) in Cang Qiao, and the attending doctor Yun Chuan also felt that Yami's case was very strange. Later, she finally found Reiko Kobayakawa Asakawa and learned that Yeung Yi, the son of Reiko Kobayakawa, had not spoken in Cang Qiao for some time. Although Reiko Kobayakawa has been avoiding everyone's pursuit, it's a pity that because of Xiangmiao's death, she was discovered. When she fled, she even died in a car accident, which put Yeung Yi in fear. Later, Mai Takano and Yeung Yi tried to solve this problem, and they went back to Cham Mountain to look for Zhenzi's former residence. Finally, they also returned to the mountain village where Si Long and Reiko Kobayakawa had been, and a series of strange things happened. What is the final outcome of Yang Yi and Gao Ye's dance?