Kaibutsu Oujo S01E23 - Princess Zombie

Hiro, Hime, Flandre, Riza, and Reiri are trying to find the royal sibling responsible for sending Dracul and the three werewolves, ending up at a town. In an abandoned warehouse, Riza and Reiri are distracted when a female warrior named Micasa fights them both. The town is then populated with zombies, and they have no idea who caused this. To make matters worse, Flandre powers down while the group tries to hold back the zombies till morning. Micasa, who briefly reports to her master Severin, another one of Hime's older brothers, returns to fight Riza. After Flandre is recharged, Sherwood, Francisca, and Ryu-ryu arrive to help the group take out the zombies, while Riza manages to defeat Micasa.