A new beginning in an insane world

Hi, I'm Lucas, a young university student, I find myself at a tragic end, but I helped a lot of people throughout my life, I wasn't rich but I did my part in the alms line, without a good appearance and a bit withdrawn, I didn't even strive to achieve great things, more due to health problems, my family was uprooted by cancer and I watched the suffering and last moments of those I loved being taken away from me little by little, and I died in the public hospital bed alone and thinking that if there was a chance If I were to reincarnate, I would be a different person, I would make the most of life, and I would have a lot of sex, fuck it, I didn't do that in life and it's my last shit thoughts.

NOTE: A comprehensive world that will be developed little by little.
As it's my first book, I'll take it easy.
There will be Harem, as it is a world similar to that of Reverend Insanity, my idea is simple, I will not plagiarize, I accept constructive criticism, I am not good at slapping people in the face.