- Marie Iitoyo (Zyuden Sentai Kyoryuger) as Kyoka Izumi, Rohan's editor
- Fuga Shibazaki (live-action The Promised Neverland) as Ikkyu, a butler in the millionaire's mansion
- Mirai Moriyama (live-action 20th Century Boys) as Jugo Shishi, Rohan's colleague
- Kumi Takiuchi (Greatful Dead) as Mai Katahira, a widow who lost her husband in a car accident six years ago
- Tomoya Nakamura (Murder at Shijinsou) as Taro Hirai, a cameraman accompanying Kyoka
The series is directed by Kazutaka Watanabe (live-action Only Yesterday special) with scripts written by JoJo's Bizarre Adventure anime writer Yasuko Kobayashi (Kamen Rider OOO, Samurai Sentai Shinkenger), the mini series is set to premiere on NHK General on December 28, 29, and 30 at 10pm JST.
[Source: Anime News Network]