Hanako Hakase/History

Chapter 1
Introducing herself as a member of the team, she describes herself as a beautiful and intelligent woman willing to do anything to save Saga.

Chapter 2
In the ritual that the group does to invoke Jofuku on the television, she manages to invoke him and the group gets a talk with him about some points of the curse. Later in the chapter Hanako talks to Tae about her attitude towards Eikichi and how she thinks he must be like her sister, even though they are completely different.

Chapter 3
Thanks to her help and her invention, the "Del Height" she manages to make Eikichi increase his height by 20 centimeters and makes him much more flexible than he already was.

Chapter 5
Hanako gets drunk after drinking all day with the busters, Eikichi is there with her asleep so she takes the opportunity to use him as her guinea pig, getting on top of him and injecting him with a "love potion" that she prepared herself to see if it worked. The next day she wakes up again after a hangover.

Chapter 6
After the incident with Takeo and after he told them about the supernatural events at school, she is willing to help him because love has no limits for her. After planning a trap with Tae dressed as a schoolgirl, she exclaims how beautiful the is the Sagako they are chasing is and with the help of the love potion she had created earlier that they catch Sagako... making it fall in love with Eikichi.

Chapter 7
Anna has disappeared from the group and while the Busters discuss how she helped them, Tae mentions that before Anna there were several members who did not last 3 days in the group, Hanako is more sincere about it and says without any problem that they were useless members since they would not know fight the real Sagako. The next day Hanako has a discussion with Tae, specifically about how to defeat a Hanako that appeared on a beach, she thinks they can defeat it with salt, but without Anna around to take samples this does not happen from mere supposition and annoys Tae for the situation.

In the past there was a similar problem, Hanako planned to destroy a wall to eliminate Sagako but Tae was there to prevent it, causing both girls to be fighting until Anna arrived.

Chapter 8
After the previous day's failure, she is reprimanded along with Tae and Eikichi by Jofuku about not being able to combat the Sagako let alone defeat it. She thinks that Anna left the group for financial reasons, she doesn't think it's in her hands to make her come back again, at least Eikichi manages to take initiative by himself and go out looking for Anna. After several hours, Anna finally reunites with the group and defeats the Sagako that she and Tae were fighting earlier.

Chapter 9
She attends the morning meeting about Higashino and later splits up to find him.

Chapter 10
With Eikichi out of the group temporarily, Hanako, along with the other Busters, are unable to fight Sagako directly and instead decide to take them all in the van to the mansion to be sealed away after Eikichi recovers. Hanako is in charge of driving (as always) with the load of Sagakos in the truck, already with the trips completed, she worries about the current state of Eikichi but at the same time she is aware that sitting and waiting will not do anything, for so she plans to build a device that will replace onions that can seal large amounts of Sagako.

Chapter 11
While at the mansion sheltering from the storm, she mentions that she finds it weird that there was a storm even though the forecast said otherwise that morning. Without warning, a loud crash followed by the mansion collapsing causes her to quickly seek shelter. After the dust clears, she sees a gigantic spider-like creature heading straight for the city, the gigantic creature making Hanako question whether it is a Sagako or something else.

Chapter 12
After Tae's battle with the Sagako, she is very badly injured and is cared for by Anna who tells her that they should go to the hospital, to which Hanako reminds them that they do not have medical insurance and that they were also left homeless and without money. The group accompanies Eikichi to his house, where his family take in the badly injured group and give them a dinner. Hanako stays with Anna in the bathroom cleaning off the dirt and debris, she also thanks Eikichi's family for being so considerate and treating them well.

Chapter 13
A month has passed since the giant Sagako appeared and destroyed the Busters' headquarters. While the group is in a motel, they go through the newspaper articles and Hanako discovers one about Higashino's death, classifying it as a traffic accident. After hearing about the disappearance of women in the Takeo area, the group heads out to investigate what they suspect is paranormal activity.

The area they arrive at is a lookout near the Nagasaki border, the group splits up to investigate on their own. Hanako appreciates how Tae and Eikichi's relationship is getting better and better and they feel more like brothers. Suddenly Magatsuhi appears behind her asking for help, she mistakes him for a lost child and tells him that she is going to help him find his family so he stops crying, after that, Hanako mysteriously disappears and no longer responds on the radio.

Hanako Hakase/Historia