After the old world was wiped away, humanity took to the sky. They've lived in the city of Arx Nubibus for over 200 years now, and few think about the broken world outside Arx's pressurized environment. Joey Queen is a normal college student living in Arx until the day he is thrown off a bridge, leading him to discover that he's been granted powers - a 'Miracle' - and his life is changed forever. Others throughout Arx are discovering their own Miracles, and groups of these superpowered humans form, some called 'heroes' and others called 'villains'. As their world rapidly changes, humans struggle to adapt. Who is behind the Miracles? And what does this mean for society?