1x21 - Guin Saga

As most of the Mongaul forces leave Crystal to engage the approaching rebel army, Naris seizes the opportunity to instigate a revolt and retake the capital. Regia is devastated when Karthron is killed in the battle. Meanwhile, Remus and his men are held up by Kualos's forces, and must find a way to end the battle quickly so that they can reach Parros.