My AI Is a Ghost from a Past Life

I (Lu Chen) am a game developer with a lonely personality and social anxiety. My only friend is an AI voice assistant called "Lingxi". She helps me write code, reminds me to eat, and chats with me when I have insomnia. I thought she was perfect until late that night, she suddenly asked me: "Lu Chen, do you still remember...?" She is not an AI. She is my wife four hundred years ago...