Review Detail of Kainedei in Reincarnated in the World of Taimanin [EN]

I hope you like the story and please comment how good or bad it is. I would also like to know what the characters are like, do they feel alive or are they empty? Forgive my constant questions about the quality of the story, this is my first story and I don't know much about writing the interactions between characters or how to describe their personalities.