Vivy Prototype (Light Novel) Vol. 3

IF AI HAVE NO SOUL, WHAT GOES INTO MY SONGS?
Vivy takes the stage at the Zodiac Signs Festival, site of the next Singularity Point.
There she meets Ophelia, an AI who committed suicide in the original history, and must confront the idea of whether AIs have souls. During their search for the truth to prevent the incident, Vivy comes face-to-face with a human she knows…a human who shouldn’t exist!
So, does an AI taking her own life prove she has a soul, or does it point to something else entirely?
Series Overview: 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?