you're right. raymond is still hiding his true self because he knows he's capable of doing, and has done, bad things. He's lived his whole life for revenge and he's not going to do a 180 turn on his personality. he knows he's not a nice guy, but he is also willing to do whatever ian wants. this seems almost desperate how raymond wants to stay by ian that he's willing to shove down his twisted desires, or at least hide them away from ian.

The story ended a bitter taste in my mouth. I can't help but feel that its lacking due to the last dialogue. Why did the author make it seem like raymond is still hiding his true self until the end.
The matter with the princess & the kingdom was also quite fast paced. It just doesnt seem realistic that they fell down that easily and the situation ended before it could start. There was also missing details on what happened to it, but i guess it's not really important as long as the seme and the uke is finally living a peaceful life.