The main way 'Chrysalis' handles transformation is through the pure physicality of it. The protagonist starts as a human, gets reincarnated as a literal monster in a dungeon—a monster ant, I think? The whole narrative is built around him adapting to that new form, learning to move, hunt, and survive with a completely alien body. It's less about internal angst and more about the practical, almost video-game-like progression of evolving his carapace, gaining new abilities, and climbing the food chain.
What I find interesting is how that physical change forces a mental shift. He can't interact with the world like a human anymore; communication, society, all that's gone. His goals become survival-based, then eventually about protecting his colony. The character development isn't dialogue-heavy; it's shown through his actions as a monster. The transformation is the story's entire premise, not just a plot point.
It’s a pretty fun twist on the isekai trope, honestly, because the transformation is so absolute and the story commits to it.