Original story with different characters connects to January 25 film

The official website for the live-action film of Norimitsu Kaihō and Sadoru Chiba's School-Live! (Gakkō Gurashi!) manga revealed on Wednesday that the film is inspiring a four-episode live-action mini-series prequel titled Gakkō XXX ~Mō Hitotsu no Gakkō Gurashi! (School XXX - Another School-Live!). The series premiered on Amazon Prime Video in Japan on the same day.

The series is an original story starring HInako Sakurai, Rena Takeda, Ei Morisako, Mio Yūki, and Nonoka Ono. The story centers around various students of Megurigaoka Private High School, including a pair of third-year students who were planning to enter a competition with their documentary film, two second-year students who are childhood friends but who have a strained relationship, and a third-year student who worries about having different views from her friends. Ono reprises her role from the film as the teacher Megumi ("Megu-nee").

Tomoya Sugioka is directing the series and penning the scripts, with music by Shu Kanematsu. The musical act meg performs the theme song "Daijōbu" (It's OK).

Issey Shibata ( Real Onigokko ) is directing and penning the script for the film. The movie will open in Japan on January 25, after a delay from fall 2018.

Kaihō and Chiba launched the manga in Manga Time Kirara Forward in 2012, and Houbunsha published the manga's 11th compiled volume in Japan on January 12. The manga will end with the 12th volume.

Yen Press is releasing the manga in English, and the company published the ninth compiled volume in December 2017. The 10th volume is slated to ship on February 19. The company describes the series:

Meet the members of the School Living Club! There's the shovel-loving(?) Kurumi Ebisuzawa, the big-sister figure Yuuri Wakasa, club advisor Megumi Sakura, and last but not least, the ever-optimistic Yuki Takeya. The School Living Club is just your average after-school organization where the girls hang out, have fun...and live at school as the sole survivors of a zombie apocalypse. NBD.

The manga inspired a 12-episode television anime series that premiered in July 2015. Crunchyroll streamed the series as it aired, and Sentai Filmworks released the series on Blu-ray Disc and DVD in June 2017 with an English dub. HIDIVE is also streaming the series with English subtitles and with the English dub.

Sources: School-Live! live-action film's website, Amazon Prime Video, Comic Natalie