Thank you for playing and thank you for your comment!
Actually, besides Houou ga Gotoku and Tsuki ga Gotoku, we are working on our first original game (started after wrapping on Houou ga Gotoku) that uses this sort of casual chatting with a friend as one of the modes of gameplay, which was inspired by what I learned on Houou ga Gotoku. It's a cyberpunk visual novel called Code.Breaker(), written by me. It is still in development, so we'll definitely think about adding more back and forth in there. I hope you have fun with Houou ga Gotoku, and maybe Code.Breaker() as well :)