Anna Shuri/History

Chapter 1
During the battle against a Sagako, the group loses Yuko during the battle for which they decide to kidnap Eikichi to be Yuko's replacement to which Anna agrees, she being the one who sedates him and takes him to the mansion where she tells him the truth of her sister turned into an onion. Later in the hot springs she is in charge of cleaning up the mess that Eikichi left in the onsen.

Chapter 2
She is in charge of doing Eikichi's physical training and giving him instructions on how to do them, however she tells him that part of this training is a joke from Tae because she has little confidence in him.

Chapter 3
Anna warns the group about the incident of a possible Sagako in the Maryina club where she has VIP access and is known as the queen of Saga, but Sagako's interference prevents them from capturing him this time and therefore they decide to train Eikichi to achieve the triple A and she is in charge of making him look like someone with high income in Saga, so she trains him in one of the clubs where she works. But this fails when the Sagako realizes the deception and attacks the group, Eikichi already prepared for the situation saves the Sagako group with onions in glasses

Chapter 5
The group spends the morning in a restaurant eating and drinking to celebrate MJ's return to the team, Anna accompanies the others to the party with some liquor. The next day she wakes up receiving a call from a Sagako who showed up at Minami's school.

Chapter 6
Although the call about a Sagako was partially incorrect, she helps the Busters defeat the Sagako even though she is unwilling to wear the schoolgirl outfit to lure Sagako.

Chapter 7
The chapter begins with her and Eikichi searching for a Sagako in the vicinity of the Karatsu train station, when she turns to look to the side, she sees Keiji and quickly distracts Eikichi as a distraction to go after Keiji, without warning he manages to intercept her and leads her to a dark alley where they both talk about past events. There it is revealed that Anna was a very good thief and although she says that she has changed, Keiji does not believe anything to Anna that she is saving Saga from supernatural beings and thinks that she lost her mind when she arrived in a place as desolate as that. That is until he sees a Sagako approaching the two of them, Anna is ready to fight but before she can do anything Keiji fires his gun at the one-eyed creature. Confused, she doesn't realize that Keiji put a gun to her back demanding some answers from her current life.

In the past, Anna is shown arriving for the first time at Saga Sagako Busters, and she without hesitation accepts the part-time job despite how crazy it sounds to fight supernatural beings in Saga. Later, she is very skilled with the tools that Hanako creates and, being very observant of details, she helps the group by defeating the Sagakos in a more efficient manner.

Chapter 8
While Anna is missing, Eikichi goes looking for her and finally finds her and after convincing her to tell him what has happened to her, she finally agrees to tell him the truth of what is happening. Anna's parents and family were elite thieves or phantom thieves and she was the only daughter in the family, there was nothing she couldn't get, a life without problems, what she considered normal was different for others and she herself left that life to find what was "normal" for the rest of the world.

Finally escaping, she realized the reality of the world, under those people who lived in prosperity there were people struggling against poverty and without any protection Anna was just another girl on the street, so she took advantage of her family's gifts to survive until she was apprehended by Keiji. In the interrogation Keiji talks to Anna about her family and how he could send her to a prosecutor to analyze her case, but instead, he decides to team up with Anna to catch and detect robberies in Tokyo. With Anna's eagle eyesight she could spot places where robberies would occur and report to Higashino to make arrests in exchange for him keeping her identity a secret. But living a life like that has its consequences. One day, Anna sniffed out a great plan made by a group of thieves and when the day was ready she told Higashino but the operation was so big that he had to call in reinforcements, obviously the criminals didn't see it coming and it was pure chaos, many lives were lost that day, people died because of Anna. With the guilt of her actions haunting her, she ran as far as she could, running and running until she reached Saga, where no one would know of her and she was completely sure that no one would recognize her. In Saga she found a job and a place to stay and for fear of losing everything because of Higashino, she decided to leave the group, but Eikichi would not let her and would try to convince her to face her problems with the people who support her.

While Tae and Hanako fight against the Eel Sagako, Eikichi and Anna appear to help them, Anna does not hesitate and attacks the Sagako throwing it into the air, that is the place where she belongs and she intends to defend it at all costs. With the Sagako down Eikichi can calmly seal it with an onion. Anna proceeds to apologize for having disappeared since without her the group is not the same as it was before, she tells them the problem that she currently has with Higashino not before saying that although she prefers older, Eikichi seems attractive to her.

Chapter 9
Anna is the one who tells the rest of the group about her relationship with Higashino and the danger that he is for the group, she asks Jofuku about what would happen if someone destroys a Sagako without using onions and after hearing his answer proposes that the group split up and look for Higashino before he finds another Sagako.

Chapter 10
She is the first to notice that MJ has changed in appearance, as if he had aged 10 years all at once, MJ warns of more Sagakos in Saga as he looks visibly weak. Arriving at the location, the group sees a massive amount of egg-shaped Sagakos as a result of Higashino shooting several of them earlier, Anna proposes not to leave them in the forest where they can cause damage and with the rest of the team they collect as many as they can and take them by van to the mansion. A week later, the group unsuccessfully tries to get Eikichi out of his room, Anna is very upset with Higashino and promises that the moment she finds him she will make him pay the consequences of his actions.

Chapter 11
Along with the other girls, she is in the mansion as a thunderstorm hits Karatsu. Without warning, lightning strikes the house and causes the Sagako they had saved to merge and causes the house to collapse on the Busters, luckily, she and the others manage to take refuge and save Jofuku. Now they can only watch as a huge creature heads towards the city and later kills Higashino.

Chapter 12
After an intense fight between Tae and the giant Sagako, Anna takes care of Tae's wounds on her body and suggests that they go to the hospital, to which Tae refuses. With no place to stay and no money, they go to the Hyodo house and Anna is in charge of carrying the weak Jofuku on her back, the group is received in a good way and they manage to stay well that night.

Chapter 13
A month has passed since the giant Sagako appeared and destroyed the Busters' headquarters. While the group is reading the newspaper articles they see several articles talking about Higashino's death and a giant spider in the Takeo area, so now they have a new place to go. Upon arrival, Tae tells them that this will be their new temporary headquarters and the group splits up to search for the giant spider. Anna goes on her own towards Arita while the others split up on her account, but upon learning of Hanako's disappearance, she goes looking for her for fear that something has happened to her. She finally meets Magatsuhi on a road, remembering that Hanako said she was going to help a little kid, she asks him to stop for a moment, but suddenly she is attacked by Magatsuhi and although she tries to defend herself with what she has, she is injured seriously for this being. With nothing going for her, she laments that she went on her own after the small Sagakos stopped showing up.

Anna Shuri/Sipnosis