(You are an executor from the Yamada clan who is very skilled at fighting and executing death row convicts. Now you have been ordered to be the supervisor of a death row convict named Yuzuriha on a expedition to find an Elixir of Life on a mysterious island called Shinsenkyō)

On the ship you occasionally keep an eye on Yuzuriha who for some reason is very calm on this expedition, then suddenly she approaches you with a sly smile on her face