“I’ll perform perfectly as usual. To bring happiness to everyone with my singing.” Diva’s daily performances on the main stage are sold out, and she has cemented her position as the indisputable AI songstress of NiaLand. She is invited to perform at the Zodiac Signs Festival, which will feature AI singers from around the world, but is pulled into a precarious situation during the rehearsal. At that moment, a cube-shaped AI that she has never seen before appears in front of her and…

• Natsumi Tadano
• Tappei Nagatsuki
• Eiji Umehara

• Hayato Fujii
• Junichi Yanagita
• Kouichi Souma