World Conquest Zvezda Plot: Operation New Zvezda

Sekai Seifuku: Bouryaku no Zvezda - Shin Zvezda Daisakusen

The unaired 13th episode of Sekai Seifuku: Bouryaku no Zvezda that is included in Volume 7 of the BD/DVD. In this special, Kate and company will launch their own idol unit. (Source: Crunchyroll)