Harvest December

Harvest December (収穫の十二月) is a manga written by Talestune and illustrated by Miura Jun.

Plot
Konno Masaki just recently moved to Tagami and has already stirred up a mess. The goddess of the land, Noshiro, lives alongside the people of the city and for some reason chooses Masaki as her mate. Without thinking about the consequences, he agrees to her demands. At the same time, Towada Yuki, the only daughter of the wealthy family of Tagami, falls in love with Masaki and asks him to be her boyfriend. And like a fool, he agrees. Now, Masaki has to juggle two of the most prominent members of the community, the goddess of the land and the member of the Tagami family, and prevent it from blowing up in his face.