Vivy -Fluorite Eye's Song-

Vivy -Fluorite Eye's Song- is set in Nierland, an A.I complex theme park that combines dreams, hopes, and science. Vivy, an autonomous humanoid A.I, serves as the park's first-ever A.I cast, performing songs to entertain the public and fulfill her mission of making everyone happy. Despite her efforts, the theme park struggles with low popularity. Matsumoto, another A.I from 100 years in the future, arrives to team up with Vivy and prevent a war between A.I and humanity that is destined to happen in the future.