Defy the Gods

Three demons have escaped from the underworld and its ruler, Izanami - Goddess of Death - sends her greatest demon hunter to retrieve them. Her husband, Izanagi - Lord of Life and ruler of the heavens - sends one of his angels to destroy them.
Angels and demons have always been enemies, so when Akki and Sarena run into each other on the earth realm, will they stick to age old traditions, or will they find that something can bloom in its absence?