Kodansha has published a novel adaptation of Naoki Yamakawa and Akinari Nao's I'm Standing on a Million Lives (100-Man no Inochi no Ue ni Ore wa Tatteiru) manga.
Sawako Hirabayashi, the script writer for the anime's ninth episode, has written the novel. Akinari Nao illustrated the novel and Naoki Yamakawa is credited for the original story.
The novel's original story takes place after Glenda joins as the sixth player, and they have to defend the village of Zagros from being destroyed.
Kodansha Comics publishes the manga in English, and describes the manga as:
Ninth grader Yusuke Yotsuya is practical, friendless, and not active in any clubs. Then one day, he and two female classmates are suddenly sent to another world where they must work together to battle for their lives. Yotsuya is a lone wolf and has always lived his life according to his wants, but how will that work out now that he's supposed to be a hero?! Get ready for a one-of-a-kind fantasy story that will challenge everything you thought you knew about fantasy!
The novel's original story takes place after Glenda joins as the sixth player, and they have to defend the village of Zagros from being destroyed.
Ninth grader Yusuke Yotsuya is practical, friendless, and not active in any clubs. Then one day, he and two female classmates are suddenly sent to another world where they must work together to battle for their lives. Yotsuya is a lone wolf and has always lived his life according to his wants, but how will that work out now that he's supposed to be a hero?! Get ready for a one-of-a-kind fantasy story that will challenge everything you thought you knew about fantasy!