The gameplay works like Sokoban, and I am so happy that I can reach the ending without any walkthrough and helps :D
The right character icon sometimes covers the dialogue, maybe more padding/margin is needed.
I like the idea to describe what happens after escaping from castle and before entering the castle, these details make me more emotionally connected to the protagonist. In the ending, the master's change is a little bit sudden and seems less persuasive.
Overall, I enjoy playing it. Good job!