Attempting to recover from the memories of his past and the burden he carries, Yasune is an assassin for the Revolutionary army who was once a humble student at the Koukenji temple. Strong-willed, a little arrogant, but loyal to those around him, he fights for a seemingly frail cause. To see the birth a new nation is his one and only goal, no matter what end should befall him.

As an orphan, Yasune was raised into a martial arts temple. One day, he is called by his teacher, forced to be sent to a secret assassin group. Unknown to the true horrors of the empire, Yasune joins. With a conflicting, but with a brave heart and a determined will, what dark choices shall befall this person? Will he find his purpose in this world? Which side will he fight for?