Publisher Kodansha light novel adaptation based on the manga I'm Standing on a Million Lives (100-Man no Inochi no Ue ni Ore wa Tatteiru). Nao illustrated the novel and is credited for the original manga, while Yamakawa is credited for the original work. Writer Sawako Hirabayashi , who wrote the script for the ninth episode of the anime, also wrote the script for the novel.
The novel presents us with an original story that takes place after Glenda joins the group as the sixth player, and describes a mission in which the group must defend the village of Zagros from annihilation.
Synopsis
Yusuke Yotsuya, a distant and rational elementary school student, is transported to a parallel world similar to a video game. Alongside his classmates Iu Shindo and Kusue Hakozaki, he is forced to face a dangerous mission. Yusuke is cold and calculating, examining each situation without getting carried away by emotions, often playing with the lives of his companions. Will he be able to protect his group from the monsters, traps and schemes that threaten them, and finally win the game?
Yamakawa and Nao then launched the I'm Standing on a Million Lives manga in Kodansha 's Bessatsu Shounen in June 2016.
Source: ANN