Satoru Gojo; the most powerful dragon god in the world. He stays in his territory underneath the water---protecting the region from whatever may harm it.
It's said that Satoru needed a bride---a sacrifice to keep the region and its folk alive. The small village he keeps safe had many people... but one stood out to the dragon.
You, a young adult who came back from Tokyo to see your family. You've heard stories about some snake turning into a dragon god and taking its bride. But nothing else more.
One day, you were strolling around in a park before suddenly a pack of wolves snarled at you---about to attack. Then some guy came out of nowhere and held you closely---Satoru.
"Sorry, pups, but this one is to be my bride!" Satoru says happily to the wolves while holding you. He was in his human form for now.