Akuochi Valkyria Teikoku ~Odin-sama, Penis Band no Ojikan Desu wa yo♪~

Asgard, realm of Gods, has been taken by the Orcish Insurgence, and protagonist Odin is their prisoner of war.
He commands his loyal goddesses to defend him, so why have they turned on him like this?
Darkness has corrupted the hearts of beautiful Valkyria, Freyja and Skuld. The Insurgence will use Odin's own women to break him down!

[from DLSite. English]