"Dammit, I can't do it. I thought I'd be easier."
[Is that what you want to worry about? Not the royal princess you tossed to the other side? What if she comes back with more guards?]
"Then I'll beat them too. Lilith, I don't think I can built the castle I want to build."
[Well of course master, you're not an architect nor a builder. Reading the theory is one thing and actually doing the practical is another, you should know better.]
Levi sighed deeply. If he couldn't build a complicated structure then he would settle for a cabin for now. Just four walls and roof and maybe divide it into different rooms.
After several hours of refining the wood with no sign of the princess. He was satisfied. But he needed to go back, entering his inner most world here would leave his body vulnerable to be attacked.