Nice story :)
Will need more black soul to buy skills and a better market (no real use for money).
Here are the targets you need to corrupt to get the royals. You will have to do few quests to corrupt them, and at some point you will need to learn a specific skill to continue the story. I tried to get all targets before starting the royals, so maybe all the royals will also need skills to finish the quests (like Gobboe to decipher the code). You will also need the first skill you learned (like Faith Interference for Lucille).
- Aewen (Elven Innkeeper) : you will need the skill Dream Visitor. After corrupting her, you will unlock quests for Gobboe (Goblin Assassin). You will need the skill Minor Rune Magic for Gobboe.
- Shel (Orc Captain of the Guard) : you will need the skill Minor Mind Reading. After corrupting her, you will unlock quests for Titania (Dragonkin General). Then, need Dream Visitor.
- Mary (Human Nun) : you will need the skill Faith Interference. After corrupting her, you will unlock quests for Lucille (Elven High Priestess). Then, need the skill Sense Magic Aura.
- Velexia (Kitsune Noblewoman) : you will need the skill Minor Rune Magic. After corrupting her, you will unlock quests for Vulsha (Kitsune Royal Guard). You will need the skill Faith Interference for Vulsha.
- Marina (Elven Librarian) : you will need the skill Sense Magic Aura. After corrupting her, you will unlock quests for Yennay (Human Witch). Then, you will need the skill Minor Mind Reading. Carefull, there is a boss in Yennay's quest with arround 1000 hp that can do 70-250 damage. Train a bit to kill it (I was level 10).
Most of the time, if you don't unlock someone after finishing corruption, then sleep at the inn and you will have an event when you wake up or when you exit the inn.
Remember to use your skill Ethereal. It's esential in some quests, else you won't be able to continu.
Need a Red Soul ? When you corrupt someone, a some point you will get one. Else, you can go to the bar next to Velexia. There are 4 girls on the right, talk to them every night and they will give you a Red Soul after few times.