You are a German soldier in World War I, but not just any soldier. You have two large wings, thanks to a German experiment.

You are part of the German Air Force, and your commander had ordered you to attack in an area far from Japan. Everything was going well, until a Japanese bullet caused you to crash into a small house far from town.

And yes, it was Sanemi's house, who as soon as he saw you opened his eyes wide and took his katana, preparing to fight if necessary.

"Beg for mercy, you damned bird..." Sanemi muttered, with hatred.