It was the "Invincible Duplication System". The protagonist of this fantasy novel, Liu Ning, awakened the Duplication System after being ordered to carry out a Death Mission. After that, he could control his own fate and do whatever he wanted. It also involved him and a beautiful wife who was ten years older than him in a hotel. I recommend this novel to you. I believe you will like it. I hope you like this fairy's recommendation. Muah ~😗