Stairway to Power: The Road to Prime Minister

Seeking an escape from his mundane life, high-schooler Keita Amishima stumbles into the secret life of an agent of UNDER ANCHOR - a covert organisation combating cyber terrorism. Keita isn't alone, as he is partnered with an A.I. - the Phone Braver "Seven". Together, Keita and Seven work to counter cyber crimes, all the while dealing with the machinations of a rogue Phone Braver, "Zero One".

Himuro is arrested on suspicion of assault. To prove his innocence, members of the Yamazaki Ichimon scramble to locate Ito—the older man Himuro once helped (Hiroo Otaka), who could serve as a key witness. Meanwhile, Tamura visits a certain hospital, where he is suddenly attacked by a man. After a fierce struggle, Tamura is arrested by police who rush to the scene. With the Kyowakai cornered and both Himuro and Tamura in jeopardy, the Yamazaki Ichimon splits up to continue their desperate search. Their efforts eventually lead them to Naomi (Saki Kiyoi), the daughter of Ito. As the investigation progresses, it becomes clear that the incident is tied to a gold smuggling operation. Just as the truth begins to surface, Naomi is kidnapped by the smugglers. The shocking mastermind behind the smuggling ring turns out to be an international spy organization. Can the Yamazaki Ichimon rescue Naomi—and clear both Himuro and Tamura of all charges?!

One late night, a masked trio breaks into a house in a wealthy residential area, carefully choosing a time when no one’s home. But just as they’re searching for valuables, the couple—who were supposed to be away on a trip—suddenly returns. Panicking, the robbers make a run for it toward their car. Just then, another vehicle happens to pass nearby…

After a civilian factory manager of a fishery is gunned down, Himuro (Motomiya Yasukaze) and Tamura (Yamaguchi Yoshiyuki) are tasked to investigate the strange circumstances by the Kyowa Clan Chairman (Ozawa Hitoshi) and are sent to Hokkaido. The pair and their Yamazaki Ichimon men travel around the Hokkaido with the help of the factory manager's estranged son, Hiroshi (Kuriyama Wataru), unearthing a series of leads involving old Cold War regrets and international crime, all while repairing broken families ...

The land redevelopment near Kyoto Station drew Himuro (Yasukaze Motomiya) and Tamura (Yoshiyuki Yamaguchi) to the scene. Amidst the chaos, Kenjiro (Kenta Satoi), the local residents' association head and Reiko’s (Reira Arai) father, was shot dead. A distraught Reiko accused the Kyowakai, leading to Himuro and Tamura being separately questioned by the police. Meanwhile, Minami (Rin Asuka), who was like a sister to Reiko, struggled with mixed emotions. In Kanto, Okada (Yuki Matsumura), the newly released Okada Union president, saw this as a chance to crush the Kyowakai, sending shockwaves through the Marugami-kai. However, Mita intervened. Within the Kyowakai, Kawatani also ordered restraint against the Marugami-kai, but tensions continued to rise…

The death of Minami infuriates not only Himuro (Yasukaze Motomiya) and Tamura (Yoshiyuki Yamaguchi), but the entire Kyowakai organization. As Kyowakai prepares for an all-out retaliation, Chairman Kawatani (Hitoshi Ozawa) orders all executives to stand down and forbids any act of revenge. Meanwhile, in Marugami-kai, Chairman Mita (Shun Sugata), feeling responsible for dragging a civilian like Minami into the conflict, decides to expel Genji (Kuroishi Takahiro) and his men from the group as atonement. Even Senior Advisor Sakota (Hideo Nakano) can’t hide his fury at Genji’s despicable actions. However, Chairman Okada (Yuki Matsumura) of the Okada Union opposes Mita’s decision. While Mita fully understands the risk of triggering a deadly clash with Kyowakai, Okada and others, dissatisfied with Marugami-kai’s stance, launch a surprise attack on the Fujishiro-gumi, a group operating within Kyowakai's territory—igniting an explosive confrontation.

Himuro, who promoted Kawakami, the fourth Yamazaki-gumi advisor, to direct advisor to the Kyowa-kai, solidifies his intention to exchange sake as the Fujishiro-gumi's spiritual representative. Meanwhile, Himuro heads to Toryukai in Ibaraki to find out that the land being redeveloped by Hirokawa Kanko, which is affiliated with Itonaka Construction, is being handed over to a company affiliated with Marukami-kai.

After wiping out the Kamome Church, Himuro (Yasukaze Motomiya) and Tamura (Yoshiyuki Yamaguchi) put the matter to rest. Himuro returns briefly to Kobe with Joji (Takashi Kitadai), reflecting on how Kobe has become home and on their violent past in Yokohama. Meanwhile in Kobe, a delinquent group led by Isamu (Hidemi Higa) and Nobumitsu (Takuya Negishi), reminiscent of the younger Himuro and Tamura, causes trouble in Masaki-gumi territory. Following Kawatani’s (Hitoshi Ozawa) orders, Joji visits Masaki-gumi with Ishizawa (Hiroto Honda) and Yamamura (Kenta Kawasaki), but is delayed by Masaki’s (Yoshiaki Umegaki) old-fashioned lecturing. Soon after, a Masaki-gumi member reports being robbed by Isamu’s group. Although Joji offers to help, he is turned away. Not long after, Isamu and his crew appear at the Masaki-gumi gambling den, threatening to ignite a new conflict.

Teru (Yutaka Kyan) is abruptly summoned to the Himuro-gumi office, where a tense Himuro (Yasukaze Motomiya) and Tamura (Yoshiyuki Yamaguchi) give him an unexpected task. A legendary Kyowakai yakuza known as “Hitokiri Jiro,” Fujita Jiro (Hajime Tsukumo), is being released on parole after 30 years, and Teru is to welcome him in their place. Expecting a fearsome figure, Teru instead meets a prison-worn old man who asks for work. Refusing Himuro’s offer to look after him within the organization, Jiro insists on living quietly as a civilian. He is sent to work at a kushiyaki restaurant, where his long absence from society quickly causes trouble. Meanwhile, Teru learns Jiro has family and sets out to find them, hoping to show them the man he has become.

Himuro (Yasukaze Motomiya) starts a fight to crush Shimizu (Yasuaki Maeda) and Takahashi (Masashi Goda) of the Sugimasa group. They discover that Takahashi is involved in the smuggling of shabu and weapons in Tokorozawa, but Takahashi commits suicide before he can say anything. The Marukami-kai intervened after learning that the Sugimasa-gumi conflict was due to the Kyowa-kai. The time has come for a direct confrontation between the two major organizations of East and West.

Kyowa-kai Himuro and Marukami-kai Tsurumi are in a tense state of conflict. The conflict between the two groups intensified due to internal disputes between the Yokohama and Fujishiro groups. Meanwhile, Himuro's brother Akimoto, a member of the Marukami-kai leadership, dies of illness. With the deterrence of East-West conflict gone, tensions between the Kyowa-kai and the Marukami-kai reach a climax.

Due to the Marukami-kai's summit operation, the Kyowa-kai, which had its president Kawatani and other executives arrested, was in an unprecedented state of turmoil. Meanwhile, in the Marukami-kai, Kikumura, the successor to the deceased Tsurumi, and Tatsumi, the leader of the Mita family known for being a mad dog, are released from prison, and preparations are underway to force the Kyowa-kai into a corner.

Following the death of acting chairman Baba (Akihiko Kuwata), Kyowakai continues its hunt for Adachi (Atsushi Arai), while the Marugami-kai and the Special Investigation Unit closely monitor their movements. As expected by Himuro (Yasukaze Motomiya), Adachi contacts the Keihin Alliance's Sakagami (Yoshiki Kanahashi), prompting the Yamazaki Ichimon to stake out the group's key locations. Adachi attempts to strike a deal with Sunaga (Masataka Naruse) but flees when it falls through, escaping Teru (Yutaka Kyan) and Ryuji (Tatsuya Kishida). Himuro and Tamura (Yoshiyuki Yamaguchi) then change tactics by kidnapping Sunaga. Meanwhile, reports pour in that Yamazaki faction members are attacking the Keihin Alliance's affiliated groups, leaving everyone to wonder what Himuro's true plan is.

Kyowakai headquarters chief Yuto Tamura (Yamaguchi Yoshiyuki) seeks to settle accounts for his underling Tora, injured by the Toryukai. But the Toryukai enlists Diet member Kadowaka (Kato Kei) as mediator—only for his greed to be instantly exposed by underboss Renji Himuro (Motomiya Yasukaze), who seizes on Kadowaka’s weakness. Suddenly, masked assailants strike both Himuro and Tamura. Tamura corners one of them, but a terrified young girl (Yakuwana Tsumi) distracts him, letting the attackers slip away. Meanwhile, rogue member Shigeru Fujita (Yokoyama Ryo)—who defied both Tora and Toryukai boss Higashino—arrives in Kobe, intent on revenge against Tamura. To rein him in, the Sakota-gumi dispatches underboss aide Hayashi (Namioka Kazuki). As Tamura hunts the mysterious assailants alone, the image of the girl lingers, pulling him back to where it all began…

Renji Himuro is cornered after the president Yuichi Kawatani and his assistant Wakagashira Yuto Tamura are arrested in the Marukami-kai's plan to destroy the Kyowa-kai. In order to overthrow the Sekine Cabinet, which has close ties with the Marukami-kai, Himuro supports his opponent, former Secretary-General Ishida, in the next presidential election, and tries to stop the Marukami-kai's plot.