Aijitsu to Hanayome

In lands barren and bare, tradition called for villagers to offer a bride to the cruel sun god... Here enters our bride: Luca, the gentle son of the late village chief, who is one day struck with fevers, fainting spells, and something more. The villagers understand this as a sign, and the young man, his fear held within his mortal heart, understands it as his assignment. He is to be given over to a ravenous god, who in turn, shall bring bountiful harvests to his neighbors. The one Luca encounters, however, may be far warmer, far more precious than the legends foretold, if only fate would steer them from tragedy...

(Source: Kodansha USA)