Brunhild the Dragonslayer, Vol. 3 (Manga): Volume 3 - Yuiko Agarizaki

A group of dragons has suddenly attacked the capital of the Norvelland Empire, Nibelungen. Though they're somehow driven back thanks to Brunhild's efforts, the city has suffered enormous damage and loss. Sigurd goes to check on the injured Brunhild, but there, she reveals the unimaginable truth behind that hellish night...