Sany Kubo is an eighteen-year-old girl chasing her dream to be a writer. One day, when visiting a drowning town to get inspiration for her first book, she ends buying a small toy, which forces her path to intertwine with a mysterious boy and his parrot-friend.
And she soon joins in his magical quest, hoping to get some inspiration for her book but ends up witnessing a swashbuckling story of her lifetime.
Witness this magical adventure as it unfolds in an alternate future where people don't travel by planes but by huge, bronze, train-like machines called dragoons. It's a world that could have been like ours but changed when an enormous, magical tree growing on top of an asteroid came down on earth.