Galaxy Angel II Vol 3

From the Broccoli Books edition

After receiving a message that shocked the Lune Angel Troupe to its core, Lily C Sherbet arrives with the news of a royal kidnapping and of a sudden uprising in NEUE. But is Lily the really who she says she is? One thing is for sure: Kazuya is not her favorite person. With the life a king in the balance, can the Lune Angel Troupe come together before it's too late?

Source: Anime News Network Encyclopedia