Scarred or scars MC

He has a facial scar, and they do some cool art with it.

Martial God is released from his thousand year seal only to take up child care.

The Male lead in this story is covered in scars.
Lithera was sent to the world of a novel, and when she died and reincarnated again to the beginning she decided to have her own path and pursue the scarred duke she had previously spent years exchanging letters with.