Hello. I read the synopsis of this book a few months ago so I can't remember clearly. The main genre is BL, Mpreg, rebirth and is set in ancient times. The summary is something like this : MC was married to a cold and ruthless general and had a child. The relationship wasn't good and MC thought general didn't care about him or the child. Then general is accused of treason or something and he sacrifices himself to protect MC and their child, although they die anyway. Then MC is reborn to the time he'd just gotten married. He now looks at general differently and tries to live a good life and change his fate.
Yes welcome. We have miraculous medicine abo, gers and even mermaids. Enjoy you trip down the rabbit hole.