The one who interrupted Takizawa Masamichi during the search meeting speculated that the gourmet (Tsukiyama Xi) was most likely to be hiding in District 6. Amon Kotaro asked Akatsuki to call Amon using honorifics, but he refused on the grounds of saving time, telling Amon not to worry about such trivial matters and to do his best to search for Rabbit (Kirishima Toka). In order to obtain information, Akatsuki and Yamen went to the ghoul shelter in District 23. The priest asked Akatsuki to leave in order to talk to Yamen alone. The priest told Yamen that it would be better to chase Alice than chasing rabbits, but Yamen thought it was 80% better. That's nonsense again.
Because Nagakon Hideyoshi found out the Bronze Tree stronghold and told the CCG, he was appreciated by Maru Tezai and named as a search assistant. Xiao and Amen were asked to take this guy away and let Nagakon go search. After Black Rabbit appeared, Nagakon felt that the information compiled by Black Rabbit and Rabbit were completely different. Xiao asked about Nagaon, and Nagaon concluded that Black Rabbit and Rabbit were not the same ghoul, which aroused Akatsuki's interest. After Shinohara Yuki told Akatsuki, Amen and Nagakon the clues about Kaneki Ken's accident, if the hypothesis is true, then the doctor Akihiro Kano is the murderer behind the scenes. Nagaon excitedly told everyone that he knew something about Kaneki. When searching Kano Akihiro's research institute, he entered the research institute with everyone and noticed the aura of Kuink material. Akatsuki and Amen acted together. After Amen was defeated by Naki, he supported Amen and used Amaz's Use the tail part to overturn Naki, and then use the armor part to penetrate Naki's body. Akatsuki wanted to cut off Naki's crotch, but was attacked from behind by gourmet Tsukiyama Tsukiyama. Amon Kotaro combined his weapons into one to block Tsukiyama's sneak attack.
In order to clear up the trouble, Akatsuki took out CRc gas from his chest and threw it out. The effect was outstanding. Akatsuki wanted to attack the two followers around Naki first, but Naki blocked the attack. Akatsuki fought with Naki again. After slashing Naki several times, Naki kicked him over. Naki grabbed Akatsuki's leg and took a bite of it, but Naki was knocked away by Amen. Yamen asked Xiao how her injury was, and Xiao told Yamen that her uterus seemed to be broken. Yamen wanted to send Xiao to the hospital but Xiao refused. Then Xiao told him that she was just joking, and Yamen gave her a lesson. Later, although he wanted to support Amon who was fighting Kaneki Ken, he thought that being injured would only hinder him. After returning to the CCG, Xiao and Yamen got drunk. Yamen sent Xiao home, and Xiao left Yamen behind. Faced with the charming Xiao, Yamen resisted the temptation and did push-ups all night. Before the Owl Expulsion War, Akatsuki and Amen met in front of the grave of Akatsuki's father, Mado Gouo. Akatsuki told Amen about his mother. Amen asked Akatsuki not to force it, although Akatsuki wanted to kiss Amen to express his feelings. Rejected by Yamen.
He served as the assistant to the squad leader of the first team in the battle against "Owl". When Yamen was severely injured in the battle against Kaneki, he seemed to have telepathic worries. After the battle, I shed tears after hearing the news of the death of Amon and Masamichi, but I just held it back. Three years after the Owl Expulsion War, Akatsuki was promoted to a senior investigator. He had his own class "Mato Class" and served as the class leader. The class of Kuinks who had the power of the box implanted in his body "Kuinks Class" is affiliated with Manato Class. Kishou Arima gave Kaneki Ken, who had lost his memory, a new name: Sasaki Keise, and led Kuae Hisao, Shikiginshi, Ryuto Toru and Yonebayashi Saeko as the instructor of the Kuinks class. Kaneki Ken, who has lost his memory, treats Akatsuki like a mother.
During the auction settlement battle, Akatsuki met Naki who had fought with him before. Later, he severely injured Naki with the "Flute Mouth" and said that he was too immersed in the past. Later, he led the investigators at the front door of the auction house to suppress Naki, Meiza and other ghouls with amazing strength.
Later, he saw Masamichi Takizawa who had become a ghoul at the auction house, and recognized him, and then Takizawa fled. Xiao was rated as a "person of special merit" in the auction house clearing campaign.
In April, he was promoted to quasi-special investigator.