Manga by author Shiryu

Eric has had a hard life. At the age of 16, his village was overrun by monsters, who killed his friends and family. He soon became a soldier, but failed to save the life of the woman he loved. In the end, he died on the battlefield, surrounded by the bodies of those who he couldn't protect.When Eric wakes up, he finds himself in a baby's body. Realizing he has been reincarnated, he quickly wonders what is going on before he gets another shocker: the man and woman who are raising him are in fact his previous life's parents!That's right - Eric was reincarnated, but as himself. No alternate worlds, no skill trees, just his memories sent back to the moment he popped out of his mother. Armed with the knowledge of his past self, Eric vows to save everyone now that the universe has pushed the reset button for him.

...You did read the title, right?

Sophia is a poor aristocratic daughter who married Alain, the head of the ducal family, through a contractual marriage. She has a special power called "gift" and has the ability of precognitive dream.One week after marrying into the duke's family, Sophia has been following her contract not to interfere with Alain's work and not to love him, but one day, Sophia has a horrifying prophetic dream in which she sees Miss Rebecca, her daughter-in-law from a contractual marriage, ruined and condemned...!How could that lovely Miss Rebecca be...? Knowing her tragic past and present and wishing to save her, Sophia decides to love Rebecca with all her might. Alan gradually begins to care about Sophia...?A romantic comedy about a contractual marriage and avoiding ruin and doting parenting?