Chaika und ihre Truppen kommen in eine Stadt, die normalerweise eine Fülle an magischen Quellen produziert. Sie finden heraus, dass Fürst Gavani die Schuld am Mangel an magischen Quellen trägt.
Arriving at Iveco, Toru realize something strange when he and Chaika notice there are no young girls and a lack of magic fuel. They soon learn from a shopkeeper that Duke Gavarni has been using all of the town's magic fuel to power the floating fortress Soara and his soldiers are kidnapping the town's girls and bringing them to his fortress where they are never seen again. Toru's group sneaks into Soara by having Akari disguise herself as one of the many girls being taken by the Duke's men where she helps Toru, Chaika and Fredrika get in by the fortress windows, unaware that Vivi and Zuita have sneaked in as well. Meanwhile, the Council decides to take action against Duke Gavarni by launching their own floating fortress Stratus. Konrad warns Alberic to get Vivi and Zuita out before the Council forces will destroy the Soara. Toru's group tries to find the Soara's magic engine only to be ambushed by the Duke's soldiers where Toru and Chaika escapes, Fredrika speared and thrown from the floor and Akari captured. Akari is brought to Ricardo, the Duke's youngest son, who reveals the Duke and his family were killed by Ricardo himself and he, his wizard adviser Grad Lancia, and another accomplice have using the Duke's name for their own plans before Grad uses a mind control spell on Akari. Toru and Chaika encounters a girl named Layla whose asks for their help in rescuing the women captured by the Duke's men but is led into a trap when Layla is revealed to be Ricardo and Grad's accomplice who kidnaps Chaika while Toru faces off a mind controlled Akari.
皇帝の遺体を所有するというガヴァーニ公爵の治める街へたどり着いたチャイカたち。
そこはヴィーマック王国一の化石思念料の産地でもあるはずが、どの店にも在庫がない。公爵が、街中の化石思念料と「娘」を徴収していると言うのだ。
街の上空を旋回する巨大な航天要塞・ソアラ。膨大な魔力を必要とするそれが彼の城だと聞き、遺体の使用を確信した一行は、町娘に扮したアカリを潜入させるが…。
Chaika et Tôru arrivent à Iveco et sont dévisagés par la population, peu habituée aux jeunes filles. Ils apprennent que le duc Gavarni recherche et kidnappe toutes les filles des environs pour les emmener sur la forteresse volante. Ils décident d'aller voir ce qu'il s'y passe, d'autant plus qu'il y aurait un morceau du corps.
시체의 소문을 좇아 이베코 마을에 도착한 토루 일행.
그러나 마을의 모습은 뭔가 이상하였는데…
