In Tokyo, where gravity no longer exists, a boy and a girl fall in love with each other. The story begins in Tokyo when there is a bubble rain all over the world, and the law of gravity collapses. Tokyo is completely cut off from the outside world and has become a playground for a group of young orphans. Everyone is here in groups, shuttling and jumping around various buildings, staging parkour wars. The young player who made a name for himself in a dangerous game style accidentally stumbled one day and fell into the sea of reversing gravity. Fortunately, he was rescued by a girl who mastered the mysterious power. Then they heard a unique sound that was completely inaudible to others. Why does the poem appear in front of the ring? The two meet and uncover the truth that can change the world.
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