The archipelagic nation of the Far East, Hinoo. First Imperial princess, Izaya was the captain of the heavy aerial destroyer “Ibuki”. Naturally, all of the airship’s crew were her fan! Out of the blue came a new crew member of the ship, the protagonist Kuroto. Kuroto was the scion of the Kuronomiya house which was a subsidiary of the Imperial house and also Izaya’s childhood friend. But, he committed an unforgivable crime that led to his expulsion from the Imperial house, which was desertion to their enemy country, the United States of Gameria.

“How dare you show your face!?”

But Kuroto interrupted her,

“I came back to save Hinoo from the monsters commanded by Gameria!”

(Source: Shogakukan. Translated)