Floats : Lost in the Future A teenager named Koni kunoichi got lost in a foreign portal until at that time she met a girl in a white coat telling her about the city that had been drowning for a long time. 300 years ago, after the future began before the city sank, there was a meteor crash until the earth was blocked by floods, many people decided to take refuge in a floating city, a future city that could float on a rocket. and this is where Koni's adventure story begins

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