The Devil's in the Lunch Deals, Vol. 1

Lainey is an ordinary human girl who runs a bento shop. But in her previous life, she was a god named Solange, the Goddess of Harvests and Death, who was expelled from the Northern Kingdom thirty years ago due to causing a war between it and the Southern Kingdom. In order to regain her godhood, Lainey has to accumulate good deeds.