Magatsuhi/History

Chapter 10
When Higashino throws a Sagako across the Saga border and it explodes, in front of him appears a mysterious figure of a girl with a demon mask who reveals some questions that he had before and introduces himself as part of the God Magatsuhi. Understandably taken aback, Higashino can't believe how many strange things he's been living with since he came to Saga, Magatsuhi thanks him for eliminating that Sagako and makes a deal with him that if he eliminates all the Sagakos from Saga, he will receive a "prize" and his original power will return.

Chapter 11
Two weeks have passed since the deal was made, Magatsuhi seems to have regained her power and communicates with Higashino. He himself arrives at a meeting point in front of the traffic and begins to speak with Magatsuhi, this being speaks in a language telepathically and seems to say something that makes Higashino angry since it seems that she is not willing to fulfill his wish. The discussion reaches a point where Magatsuhi decides to get rid of Higashino when he demands to fulfill his wish, piercing his body with one of her limbs.

Birth 1969
This Sagako was born from a child, literally. In the 60's Tae's parents found a strange creature that resembled a baby, they concentrated on researching it and raising it to understand its properties, all this in the university laboratories where they worked. When the government found out about this creature, they went to take it away as it was an unauthorized investigation and endangering the inhabitants. When they were about to take the baby away from Tae's parents, the Sagako was finally born in an explosion that killed everyone around it.

Present
In the year 1989, Magatsuhi begins to recover her power and finally manages to manifest when she fuses the Sagakos that the Busters had in their mansion through lightning, resulting in the gigantic arachnid Sagako appears again in Saga. Tae unsuccessfully attempts to destroy the Sagako, resulting in her being seriously injured after the battle.

Chapter 13
She appears around midnight at an amusement park in what appears to be a kidnapping of a woman, she uses his limbs to pin her against a wall while constantly asking her if she's about to cry or if she's hurting her, only to end up crying while saying some unintelligible words.

Magatsuhi reappears in front of the Sagako Busters team, this time being their victim Hanako, who mistakes her for a lost girl and offers to help her search for what she says she lost, which Hanako interprets as her family. At night, Anna finds Magatsuhi again and remembers that Hanako said that she was going to help a lost child, but to her surprise, she is attacked by Magatsuhi and is seriously injured in her shoulder, leaving her incapacitated. Magatsuhi/Sipnosis