Princess Suzuka Kasuga is called into battle after injuring her father for being an angry drunk. Magoshichi, an apprentice to Suzuka who admired her throughout their lives, is a perverted fuck who made her drink sake with his semen in it. He is ordered by Lord Kasuga to protect her and to keep her super-powered angry drunkness intact. 

Magoshici failed to keep Suzuka's drunkness after an enemy ninja destroys the bottle holding the sake. The Enemy General challenges Suzuka to a duel, as he promised to release prisoners if she won. In her sober state she reverts to a timid princess. After getting her drunk to fight, the princess is just... drunk. Causing her to put on a show for the enemy soldiers. After seeing this the Enemy General fucks her just cause and leaves her for his soldier's to use her as they like.

Magoshichi figures out it's his semen plus the sake that gives her such powers but they reject this. The soldiers give her semen-sake and it actually works. She knocks the fuck out of the Enemy General only to take him back to her father, as she intends to marry him.