[Oshi no Ko]: Ichibanboshi no Spica

Ai Hoshino, the permanent center of B Komachi, suddenly tells President Saitou that she is 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!

(Source: Yen Press)