Afterlost is a Japanese mobile game series. An anime television series adaptation by studio Madhouse aired from April to June 2019.

Kenji Kawai is a Japanese music composer and arranger. Known as one of the biggest names in the soundtrack world, he has worked on a wide range of mixed media productions, including anime, TV shows, films and video games. Among his credits are Toei's Kamen Rider Heisei Generations Forever, Tsui Hark's Seven Swords and Young Detective Dee: Rise of the Sea Dragon; Wilson Yip's Ip Man; Mamoru Oshii's films The Red Spectacles, StrayDog: Kerberos Panzer Cops, Ghost in the Shell, Mobile Police Patlabor, The Sky Crawlers and Avalon; the anime adaptations of Rumiko Takahashi's Ranma ½ and Maison Ikkoku; the live-action adaptation of Gantz and Hideo Nakata's films Ring, Ring 2, Chaos, Dark Water and Kaidan.