The Water Spirit's Bride

Since young, my health condition isn't doing really well. To keep me alive, my parents acknowledged a spirit godfather for me. My parents said, there's too many people acknowledging deities as their godparents, so the deities will have their hands full. I'm the only one to acknowledge a spirit as my godfather, hence he will dote on me. I grew up safely and peacefully, but one day my godfather came knocking on my door, wanting me to marry him. Holy heck...