Vivy is a passionate AI singer in *Vivy: Fluorite Eye's Song*, dedicated to her mission of spreading happiness. Her journey intertwines with the fate of humanity as she learns to navigate complex emotions and challenges.
Matsumoto is a time-traveling AI in *Vivy: Fluorite Eye's Song*, tasked with guiding Vivy through her mission. His pragmatic approach often contrasts with Vivy’s emotional journey.