New Film and Drama 'Kioku' Announced, Starring AKB48's Mizuki Yamauchi with Script by a High School Student and Special Appearance by Issei Ishida
Production company Yui film has announced the production of 'Kioku,' a terrestrial TV drama and theatrical movie starring Mizuki Yamauchi of AKB48, with a script written by current high school student Yuna Nagai. The story follows the conflict between a brother who feigns amnesia after an accident and his sister who pursues the truth behind his lie. Issei Ishida will make a special appearance, and an advance screening is scheduled for August 30, 2026. An acting workshop led by Ishida will also be held as a related project.
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- 📰 Published: May 18, 2026 at 19:00
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Production company Yui film has announced a new project: a terrestrial TV drama and theatrical movie titled 'Kioku' (Memory). The script is written by Yuna Nagai, a current high school student, and the lead role will be played by Mizuki Yamauchi of the idol group AKB48.
## Synopsis
Sakura's older brother, Toya, miraculously survives an accident. However, upon waking, he pretends to have amnesia and begins to distance himself from his girlfriend, Maya, and his sister, Sakura. Feeling that something is wrong with her brother's behavior, Sakura starts her own investigation. She eventually discovers that Toya is suffering from a progressive brain disease and that his 'amnesia' was a lie—a painful choice made to push his loved ones away. The story portrays Toya, who chose solitude; Sakura, who refuses to accept it; and the attending physician, Takeru, who is caught between them. A decision by Takeru sets their frozen time in motion. As conflicting emotions clash and the lie begins to unravel, the film depicts the 'way of loving' that each character chooses within their limited time.
## Cast
- Sakura Yuki: Mizuki Yamauchi (AKB48) - The younger sister who notices her brother's lie and pursues the truth.
- Maya Yasuda: Saaya Hinokuchi - Toya's girlfriend, who continues to love him despite his changes.
- Toya Yuki: Ryunosuke Shinsen - The young man who feigns amnesia, bearing a lonely choice.
- Nana Yasuda: Yuna Nagai - Maya's younger sister, a character central to the story's core.
- Haruto Minami: Shunshuke Nakamura - Nana's boyfriend.
- Aina Niimi: Amisa Miyazaki - Sakura's friend.
- Takeru Masuda: Issei Ishida - Toya's attending physician, who struggles with knowing the truth.
## Event Information
- **Advance Screening & Stage Greeting**
- Date: August 30, 2026
- Location: Near Ikebukuro Station, Tokyo (planned)
- Scheduled to Appear: Mizuki Yamauchi (AKB48), Issei Ishida, Shunshuke Nakamura, Saaya Hinokuchi, Ryunosuke Shinsen, Amisa Miyazaki, Yuna Nagai, and others.
- Ticket Sales: Begin June 18 at 20:00 (JST) via https://livepocket.jp/e/haiws
- **Acting Workshop**
- Overview: An workshop on the theme of 'The Reality of Acting and Emotion,' featuring Issei Ishida as a special instructor.
- Schedule: 1st session on June 7 (online), 2nd session on June 13 (in-person in Tokyo and online).
## Production Details
- Production Company: Yui film (https://www.yuifilm.com/)
- Copyright: 'Kioku' Production Committee
- Distribution: Scheduled for release on a major streaming platform.
## Synopsis
Sakura's older brother, Toya, miraculously survives an accident. However, upon waking, he pretends to have amnesia and begins to distance himself from his girlfriend, Maya, and his sister, Sakura. Feeling that something is wrong with her brother's behavior, Sakura starts her own investigation. She eventually discovers that Toya is suffering from a progressive brain disease and that his 'amnesia' was a lie—a painful choice made to push his loved ones away. The story portrays Toya, who chose solitude; Sakura, who refuses to accept it; and the attending physician, Takeru, who is caught between them. A decision by Takeru sets their frozen time in motion. As conflicting emotions clash and the lie begins to unravel, the film depicts the 'way of loving' that each character chooses within their limited time.
## Cast
- Sakura Yuki: Mizuki Yamauchi (AKB48) - The younger sister who notices her brother's lie and pursues the truth.
- Maya Yasuda: Saaya Hinokuchi - Toya's girlfriend, who continues to love him despite his changes.
- Toya Yuki: Ryunosuke Shinsen - The young man who feigns amnesia, bearing a lonely choice.
- Nana Yasuda: Yuna Nagai - Maya's younger sister, a character central to the story's core.
- Haruto Minami: Shunshuke Nakamura - Nana's boyfriend.
- Aina Niimi: Amisa Miyazaki - Sakura's friend.
- Takeru Masuda: Issei Ishida - Toya's attending physician, who struggles with knowing the truth.
## Event Information
- **Advance Screening & Stage Greeting**
- Date: August 30, 2026
- Location: Near Ikebukuro Station, Tokyo (planned)
- Scheduled to Appear: Mizuki Yamauchi (AKB48), Issei Ishida, Shunshuke Nakamura, Saaya Hinokuchi, Ryunosuke Shinsen, Amisa Miyazaki, Yuna Nagai, and others.
- Ticket Sales: Begin June 18 at 20:00 (JST) via https://livepocket.jp/e/haiws
- **Acting Workshop**
- Overview: An workshop on the theme of 'The Reality of Acting and Emotion,' featuring Issei Ishida as a special instructor.
- Schedule: 1st session on June 7 (online), 2nd session on June 13 (in-person in Tokyo and online).
## Production Details
- Production Company: Yui film (https://www.yuifilm.com/)
- Copyright: 'Kioku' Production Committee
- Distribution: Scheduled for release on a major streaming platform.