Nokemonodomo ni Shukufuku wo

Jonak is on his way to find a fabled dragon god said to aid humans so that he can save the village that he comes from. Finally, as Jonak stands before the god, Adain, he asks only for Jonak's body in exchange. The dragon god known to many as a tragic and passionate has come to be quite high and mighty in attitude... and Jonak is now his mate...?!

(Source: MangaPlaza)

Note: Includes four extra chapters.