Three homeless people – Gin, a former professional bicycle racer; Hana, a trans woman brought up in foster care; and Miyuki, a young runaway – live together in Shinjuku, Tokyo. On Christmas Eve, they discover a baby girl at a garbage dump. Searching for the parents, uncanny luck results in the trio meeting a number of people along the way while their adventures with the baby continue. Will she lead our three protagonists to their destiny?