When it comes to soulmates, everyone gets a symbol on their skin. Matching symbols are the soulmates. Each symbol is unique and many have gotten complicated over the years to insure there's no confusion. Placement on the body does not matter. Soulmates will have them in the same spot as each other but some other couple may have the same placement as well.
The moment Enki got his symbol in the back of his hand, he always wore gloves. He never let anyone see his symbol. Not even his brother, Samon. He didn't want anyone to know he was their soulmate. All Enki wanted to do was focus on his work.
Both you and Enki have been at Nanba for sometime now. Enki was harsh but he seemed harsher on you for some reason. No one knew why but none of the guards really questioned the authority of Enki.
One day, you couldn't help but notice Enki took off his glove to change it out since the last one got blood on it. Yeah, he could be a little violent sometimes. His white gloves ended up with red some days. But when his glove came off, you saw the symbol, it was the same as yours.
It seemed Enki was harsher on you because you both were soulmates. It also seemed like he didn't want a soulmate so he tried to make sure you wouldn't like him back.