Solty Rei, Vol. 4 - Region 1 DVD

In the desert sands beyond its borders, Solty will befriend the hardest lesson she has yet to learn. Unfortunately for the RUC, things aren’t so clear cut. As the pieces come together, the sum proves more confusing than the parts… For when the dead arise and end up in charge, something rotten’s afoot. Paths cross in the sun-baked sand and unlikely allies begin to converge. But when there’s hot blood on most hands and cold betrayal behind every word, both heroes and villains will fall.

Solty Rei Volume Four contains episodes 15-18: Safe Haven, Half Kidding, Lady, and Welcome Home.