Arata Ookoba/History

Episode 5
Through the Drive-In tori television commercial and coverage of Kashima Gatalympics, he realized that Junko had some familiarity and began his own investigation.

Episode 6
In episode 6, after something strange about Franchouchou happened, his photographer and he started investigating on Franchouchou's official website, later in the episode they are seen at the closed concert and noticing the strange attitude of Junko and Ai

Episode 7
At the Saga rock event he attended to take photos of the participants and in his research it was seen that he recognized Ai

Episode 8
In the episode of Lily, they are seen behind Franchouchou for a few moments before Takeo arrived.

Episode 12
In the last episode it is seen that he has something behind and after Arpino concert, he compares the photos of Junko, Ai, Lily and Junko's photo who looks more worn than the others, so it is to be assumed that it had been stored for a long time

Episode 14
Okoba has a small cameo near the end of the episode, Inubashiri tells us that Franchouchou has returned to being an idol group and he replies that he saw it on their ugly website, both of them were surprised to hear on the radio that #2 is in the radio with Ryu and that they take over as radio host in Saga, this makes Okoba spit his curry in Inubashiri.

Episode 15
Another cameo, this time watching No. 3's solo performance on his office television, later asks Inuhashi about Franchouchou's upcoming performance and doubts that the group will manage to surpass Iron Frill at the Saga Arena.

Episode 16
Cameo without speaking in the Saga Arena.

Episode 18
Despite continuing to investigate, he has not been able to get anything conclusive from the girls, Inubashiri mentions that people on the internet are noticing more similarities with number 3, number 4 and number 6 but that most only think that they are double of the girls and annoying Okoba telling him that they are revived zombies, a phrase that will be relevant later.

Passing through one of the streets of Saga, he runs into number 0 and decides to follow her secretly while taking a photo of their actions, something that he notices is that the inhabitants of Saga are very friendly with number 0 and even offer her their food, When passing through a cemetery, he is almost discovered by Tae and Romero but manages to hide, while he leaves, he sees the tomb of the Yamada and the Minamoto. At the mall where Maria works, he is surprised to see number 0 biting Tae thinking that she is attacking her. When going to plaza 656 he is attacked by Romero when he tried to take a photo of Tae turning her head, later he follows Maria's group to the Karatsu boat race, where he emphasizes how bad Saga is and tries to take another photo of Tae, but he start to think that it is just tiredness. At the end of the day he follows Tae and Maria to the girls' mansion and when he is about to leave he decides to turn around and accidentally sees the zombie incident, managing to capture it on camera and now he does believe that they are real zombies.

Episode 19
Some time after his discovery, Okoba manages to find information and news about the deaths of every member on Franchouchou, including Tae, but he didn't manage to find any information about Number 5, Yugiri. But despise this, he comes to the conclusion that everyone on the group were dead.

Episode 22
After discovering the identity of 6 out of 7 girls from Franchouchou, Arata confronts Kotaro in the EEF about the true identity of the Franchouchou girls, Kotaro remains silent about it and makes Arata angry because he thinks Kotaro is using dead girls. as exploitation and threatens Kotaro with revealing the identity soon so that his plan does not follow in course. At night and with the article ready Arata prepares to send it but suddenly the light of Karatsu leaves and he cannot send the article.

Episode 23
Arata is incommunicado due to internet and power failures throughout Saga prefecture and attempts to call Inubashiri without success. Later in the makeshift shelter he meets the Franchouchou girls and decides to follow them to see what they do, to which Arata realizes that they do not stop being controlled by someone, later he goes to see them in the area above the shopping center and discovers their true zombie form and is visibly concerned with how they will perform without the proper makeup. When his masks are broken he is visibly scared but luckily for the girls, the locals think it is some kind of makeup to entertain the children, Kotaro arrives after Arata realized that Franchouchou is not being controlled by Kotaro and he asks him for a favor.

Episode 24
Kotaro's favor to Arata was to promote Franchouchou's charity concert throughout Japan in order to have more influx, Arata wishes Kotaro that God is on his side to which Kotaro responds that he does not want to put God in these things. On the morning of the concert and with the help of Arata Franchouchou he manages to fill the stadium thanks to all the sponsors that Arata got and the relevant people who appeared throughout the season. Arata Ookoba/Sipnosis