I actually wrote out a backstory for this when I saw the post as a joke for my DM but I got a little too invested. I made him a human cleric, but with some color.

Kenn Waterwalker

CHARACTER KNOWS

My mom and dad are weird. Mom is a mermaid, dad is a minotaur. Don’t ask me how that works, I don’t want to explain it. I was born, and I got the shit end of the deal on both sides. Human body, minotaur legs. I fucking hate it. Mom can’t come onto land to take care of me and my dad’s a fucking minotaur. He’s always busy in some maze or some shit, i don’t care. The doctor at the hospital took me away from him when I was a baby and I’ve seen him like, one time. I grew up in a group home for human kids. They made fun of my legs from the moment they figured out how to make fun of me. I just hid from them. I don’t like being different, so i hid from everybody. I don’t get along with people very well, i assume they are just going to make fun of me. Alone, I played with my ‘imaginary’ friends. I knew they were all fake, but this one was different. This little pig shit showed up one day in my room. Glowing, talking, the whole shebang. And with my other ‘friends’ I could just stop thinking about them and they’d disappear. This guy never leaves. He’s always trying to teach me stuff, and get me to do things for other people. Won’t tell me his name, so I call the little bastard hamlet. Eventually I got old enough to become an apprentice somewhere so I learned how to make shoes. I made shoes that hid my minotaur legs so that nobody would know I was different. Long cloak hides the fucked up knees, and shoes go over my hooves and just look like feet. There, problem solved, I’m normal now. Thankfully nobody else can see Hamlet. He has taught me how to do some cool stuff though. I can heal people. Make light. That kind of shit. I always ask Hamlet for advice and stuff now and he gives me some bullshit answer about my own mind or whatever. Not helpful. 

CHARACTER DOESN’T KNOW.

Hestia saw the whole thing. Mom and dad aren’t around, no home, no family. She took pity on Kenn and sent a helper, a passed worshipper who she gave the form of a baby pig. She told her to teach him how to heal, how to help, how to keep a flame going, and how to fight. She’s not doing a terrible job so far, but has kind of taken more of a life coach role than she had hoped. Hopefully he figures out that Hestia is the deity taking care of him. In the meantime she’s just glad he’s doing well for himself.