Yoshimasa Akamatsu
Writing
Known For

Set in a place where zombie's existence are commonplace. Shinsuke Akaba (Kento Hayashi) works in the special welfare division at the Tamagawa City Office. His job is to deal with zombies and catch zombies. His life is boring, but, one day, a pretty woman is assigned to work in the same division.
Tamagawa Ward Office of the Dead

As Kiryu Sento prepares for the proxy battle against Kamen Rider Grease, Nariaki Utsumi appears and offer his help.
Kamen Rider Build: Raising the Hazard Level ~7 Best Matches~

The dark secrets behind Himuro Gentoku's machinations and eventual redemption... Three years ago, Gentoku, head of the Touto Institute of Advanced Matter Physics, tries to convince his old friend and Touto Prime Minister aide Koji Hotei that Touto needs to strengthen their military in order to face the threat Hokuto and Seito represent. After Hotei dismisses him, Gentoku is made aware of a certain researcher.
ROGUE

Feeling unhappy with his gun, Jigen is looking for the world’s best gunsmith. He finally finds out that Chiharu, who runs a watch shop, is the person he’s been seeking. Then, Jigen meets Oto, who comes to Chiharu’s shop looking for a gun. Jigen finds out about Oto's secrets and the mysterious organization that’s after her. After Oto is kidnapped, Jigen gets into a desperate battle to save her.
Jigen Daisuke

Kamen Rider Build: Transformation Lessons ~The Laws Of Transformation Are Set!~ is a web-exclusive series of Kamen Rider Build, which is released on Bandai JP's official YouTube channel, accompanying the airing of the main series' episode.
Kamen Rider Build: Transformation Lessons ~The Laws Of Transformation Are Set!~

This special takes place before episode 42 of the Kamen Rider Build TV series. Misora, who has gotten irritated with Gentoku’s Fashion Sense, takes him out for shopping to buy new clothes. Over there he meets a boy but...
Kamen Rider Prime Rogue

Facing goodbyes and graduation, Naomi Nakashima, her childhood friend Satoshi Mochida, and their classmates, are clearing up after their last ever cultural festival, when horror buff class representative Ayumi Shinozaki decides to perform Sachiko Ever After so they will stay friends forever. Instead, they were whisked away to a haunted graduation ceremony for Heavenly Host Elementary School, forced to close after a series of gruesome murders. What fate awaits Naomi and her friends at the cursed school...?
Corpse Party

In 2002, “Fukushu Ho” (Revenge Law) has been implemented. “Fukushu Ho” allows victims or victims' family to exact revenge against criminals directly. Yasuyuki is a middle school teacher. He is opposed to “Fukushu Ho,” but he changes his mind after his wife is murdered. Yasuyuki decides to take revenge on the murderer who killed his wife. According to “Fukushu Ho,” Yasuyuki travels to an island which has been designated as the get my revenge location. At the same time, members of a radical environment protection group, who committed terroristic acts indiscriminately, are at the same island. Family members who lost loved ones in the terroristic acts arrive on the island to exact revenge. The victims' families have 18 hours to take revenge. Weapons, food and GPS are given to the families and the locations of the criminals. If the revenge acts are not carried out within 18 hours, the criminals are released.
Get My Revenge

High school girl and four other people were forced to play a X-game to take responsibility for what they did in the past.
X Game 2

Yasuda (Hitomi Matsuda), the Wakagashira of the Takemiya Union Tōjō-gumi, infiltrates the hideout of the Yamashina-gumi's Sakazaki (Junichi Kawamoto), who had been secretly engaged in organ trafficking. Yasuda tries to extract the truth from Sakazaki, but is killed by Detective Hyūga from the Organized Crime Division (Marubō). The blame is pinned on Yasuda, leading to his arrest. Two years later... In Yasuda's absence, the boss of the Tōjō-gumi, Tōjō (Hiroyuki Watanabe), is assassinated by a hitman from the Myōjin-kai. The situation changes drastically. Nikaidō (Tarō Kawano) pressures Yasuda to reestablish his oath of allegiance, but Yasuda firmly refuses. Frustrated by Yasuda's response, Nikaidō makes a certain proposal to the union's chairman, Shimamura (Shunsuke Kariya).
Jet Black 2

Eri (Matsubara) is a high school student who is anonymous unlike her friend Mitsuko (Yokoyama) who is the target of amorous advances from their teacher, Ichida (Tsubouchi). Eri comes across a novel way to protect Mitsuko: find a cursed funerary urn that contains ashes reputed to cause death and give said ashes to teacher.
Kotsutsubo

Kamen Rider Build: Birth! Bear Televi!! VS Kamen Rider Grease! is a Televi-Kun Hyper Battle DVD for Kamen Rider Build featuring the exclusive appearance of Build's Bear Televi Form. This special takes place between episodes 18 and 19. It reveals the origin of the Hokuto Three Crows' dog tags.
Kamen Rider Build: Birth! Bear Televi!! VS Kamen Rider Grease!

Takemiya Union Tōjō-gumi Wakagashira Yasuda (Hitomi Matsuda) retaliates against the Kansai-based Myōjin-kai by attacking their office after an assassination attempt on Union chairman Shimamura (Shunsuke Kariya). Joined by Yamashina-gumi Wakagashira Kiryu (Yoshiyuki Yamaguchi), the two succeed and pledge to work as brothers without an official oath, dedicating themselves to their organizations and the Union. The Union faces upheaval with Shimamura's retirement announcement and the loss of his son, Katsuto (Hitoshi Ozawa). The leadership race narrows to Tōjō (Hiroyuki Watanabe), Yasuda's boss, and Yamashina (Masahiro Noguchi), Kiryu's boss. Just as Yasuda’s casino operation thrives, a police raid confiscates all earnings and forces its closure. In desperation, Yasuda turns to a certain man (Naoto Takenaka) for help.