[Oshi No Ko] Spica of the First Star novel volume 1 was written by Aka Akasaka with illustrations by Hajime Tanaka.

Wishes are born and dreams end beneath the first star…Ai Hoshino, the permanent center of B Komachi, suddenly tells President Saitou that she's quitting the idol business. Although the group appears to be thriving, there is serious discord between Ai and the other members. Saitou knows nothing he can say will change her mind, so he asks Ai to accompany him on one last job…Meanwhile, the fates of Gorou Amamiya and Sarina Tendouji intertwine as they meet, grow closer, and eventually part. Little do they know this bond will carry them from one life into another!Witness Ai's resolve, Sarina's dream, and Gorou's budding fandom in this deluxe first novel, which includes an exclusive short story by Aka Akasaka, the writer of the original series!