Three sisters inherit a god nobody asked for, and suddenly they're responsible for what a weapon does to the world. The show treats this like a real problem, not a power fantasy, but a burden that splits them apart every time they have to choose who gets hurt. It's a fable about power and consequence wrapped in 90s sci-fi that asks what you owe the people around you when you control something that can destroy them, and never pretends there's a clean answer.

Three sisters inherit more than they bargained for when a massive ancient deity awakens on a remote Pacific island. Minami, Ushio, and Yuuhi Shimabara, who live in Tokyo, learn that they are the heirs to this island kingdom and to Ranga, the huge god that had slept there forgotten by the world. Once Ranga appears in Tokyo, it becomes a source of both wonder and conflict. The sisters control it, while others want to destroy it and still others hope to use it for their own ends. The series is a mecha adventure with horror elements.