How to Hide the Emperor’s Child
ML used FL to get the throne, after he became king, he immediately divorced FL and told her that he never loved her and only used her to get to the throne. FL is heartbroken and left but FL didn't realise that she is pregnant with ML's child. Years later, her little boy grew up with red eyes (which is unique only to royalty). One day, ML (already king) came looking for FL due to some conditions for inheritance, in order to hide the emperor's son, FL used herbs to change her son's eyes to be blue. Initially ML suspected that child is his, as the child looks exactly like him. But when FL said the child is her nephew, and when he saw the child's blue eyes, he had to put away his suspicions.
Mo Dao Zu Shi
Suddenly Became a Princess One Day
How to Get My Husband on My Side
What It Means to be You
FL and ML married without love. FL was miserable, but ML only knows to give her money instead of showing her affection. FL felt hopeless and took her own life (suicide), but after that she realise her body swap with ML. Everytime she died, she will body swap with ML. Initially ML didnt know why the body swap happens, but then he found out about her suicide attempts and was devastated.
I Thought It Was a Common Isekai Story
FL reincarnates as villain, although she marries the handsome ML, but he is in love with the original FL and mistrusts FL because she is from a rival family, her family reputation, and her own reputation. ML family also distrust FL. Until ML realise he cares for her and regrets his wrongdoing.
Actually, I was the Real One