It is at the end of the Heian Era. "Where am I? Who... am I...?" Having lost my memory and fallen in a battle field, a man appears in front of me. "I'll take you somewhere nice." Being picked up by him, I end up being involved in the midst of war?! A story of secrets and forbidden love hidden behind the Genpei War. A sudden kiss... Our skin touched for the first time... Ninja love is about to begin.