Water Belongs to the Dead

Sadly, on indefinite hiatus as I suck at writing FL (I suck at ML too but less)
A healer woman with a gun falls for the right-hand man of her sworn enemy.

Serenica Ingram is a cold-hearted action heroine, a doctor and a healer witch. She's searching for patients to keep her job in a fantasy world when she finds out that a local businesswoman wants her dead.
The enemy has her own weapons against Serenica - an army of city guards, social power, and most of all, the male witch whose visits bring trouble along with something else.
A feeling.
When Serenica finds out that the businesswoman is courting her most trusted lieutenant, something within her iron heart moves.
The love triangle takes her across an ocean as she hitches a ride from pirates while collecting resources to take her enemy down.
Three witches, two of them women, guns.
Action.
Serenica has an obligation to hate the rest of them, but with the Ink Witch, it's simply impossible to fulfill her duties.
She needs gold to be the best doctor in the land of Sennas. He needs to dethrone the businesswoman, Mariana Kinley, to expand his princedom. Kinley needs to soothe her paranoias by killing all other witches.

Everyone is a violent bastard.
R18 for blood.