"In an age when artificial intelligence has become integral to human life, AI songstress Vivy captures people's hearts with her enthralling voice at a theme park, NiaLand. When a mysterious AI who calls himself Matsumoto appears and claims to be from one hundred years in the future, he warns Vivy of the coming apocalyptic battle between AI and humankind. Can Vivy help prevent an all-out war one hundred years hence, and save humanity from destruction?"--

Tappei Nagatsuki is a Japanese writer best known as the author of the light novel & manga series Re:ZERO and the Vivy prototype light novels.
 
Eiji Umehara is a Japanese screenwriter best known as the main writer for visual novel ChäoS;Child. He has worked on scripts for multiple projects, including the Re:ZERO and Vivy -Fluorite Eye's Song- anime.
loundraw is a Japanese artist best known for illustration work and character designs for such projects as Vivy, I Want to Eat Your Pancreas, and Josee, the Tiger and the Fish. loundraw recently debuted as a director with the anime film Summer Ghost, and founded the anime studio Flat Studio.