Otaku reincarnated as an assassin in a romance manga

I was a orphan in my past life the moment I got 18 I start living on my own and immediately find a job, since I was an orphan I have no family and also I didn't have any friends and zero experience of dating due to that I was engrossed reading a lot of manga and there's a manga that I cherish and that is [Kill my lover] is based on assassination between the heroines and the protagonists where the heroines try to kill the main character since they are tasked to, so I really liked this series and eventually I got died by saving a guy who was about to get stabbed by a knife. The moment I wake up, I was sleeping with a sick girl beside me