Maiden Warrior Valkyrie 2 / Ikusa Otome Valkyrie 2

Hentai is based on the visual novel of the same name from Lune studio. It is a sequel to "Warrior Valkyrie" released in 2004. 

Hentai does not change its tradition and in this season the next valkyries are captured by the next dirty demons led by the evil Lord Duke. Midgard is overrun by hordes of demons and Odin has no choice but to send a couple of valkyries in the hope of protecting the abode of the gods. Duke, in turn, tries to defile the young valkyries and poison their minds to show the great god who should rule Midgard...