Swallowtail Butterfly

The yen was once the most powerful currency in the world. Foreigners who wanted to make a fortune came to Japan and called it yen; while the Japanese despised them as yen thieves. After her mother died, a young girl wandered around among ugly adults, and was finally taken in by a prostitute with a butterfly tattoo on her chest and a beautiful singing voice. After that, the two settled in an abandoned repair station and met other gang thieves. One day, a tape containing information about making counterfeit banknotes made everyone rich overnight; however, after getting rich, they began to take different paths...