Shuumatsu no Hanayome-sama ~sweet home†melty life~

Michiru, born under his extremely religious mother, believes that one day an angel would come down and save him from his suffering and pain. After getting severely bruised and beaten up from the kids at his school, his nextdoor neighbor, Hikari, comes to his aide and carries him to her home. While Michiru is asleep, she rampages the world, destroying everything. When he awakes, it is revealed to him that Hikari is an angel. Michiru asks Hikari to marry him, which she gladly accepts. Will their sudden post-apocalypse and newlywed life give Michiru what he always wanted? Or is there more to it under the surface?