Ninja Sougetsu infiltrates a castle and is ordered by his general to steal a scroll containing a battle plan. However, he is caught off guard and captured by the castle's ninjas, and is interrogated directly by the enemy general, Eiryu. The contents are humiliating and unbearable. However, Sougetsu does not give up in order to complete his mission. Seeing this, Eiryu escalates the interrogation even more...