For the Glory of Rome: Chronicles of an Isekai'd Legion - Chapter 48: The Standard

The strongest Demon Lord dies, and reincarnates as a human. Not only that, he because of various incidents turns into the hero’s best friend.

Follow his journey as he tries to help the hero escape his fate, and on the sideline to conquer the continent while he’s at it.

Roy’s life was nothing special. The only thing commendable was the last few moments when he saved a mother and her child from a drunk driver.
…
It’s really an egg! Damn it, what kind of monster have I become? Did I fall into Hell instead of making it to Heaven??
Join Roy as he ventures through various worlds with the Custom Made Demon King System—a system that allows Roy to draw anything he can imagine and create it through exchanging souls!

International negotiator Jiang Fu was framed and died.

Waking up to find himself reborn in the body of a newly engaged female college student.

When confronting his fiancé for the first time, Fu Xiting’s tone was cold and murderous: “If you are obedient, you will keep it. If you are not obedient, you will abandon it.”

Confronting again, Jiang Fu stood in the auditorium of the Capital University to participate in the International Collegiate Debating Competition. Looking at Fu Xiting, who was the referee, she asked in a straight voice, “Mr. Fu, what is marriage to you?”

Fu Xiting replied: “Benefits.”

Rumor has it that Fu Xiting, the prince of the business world, married a charming wife.

Unexpectedly, on the wedding night, his wife held a cold knife to his throat, and her voice was comparable to that of King Yama: “In 2009, Jiang Fu, an international negotiator, and her team went to Dongguo for negotiations, and the plane crashed on the way back. What does it have to do with you?” relation?”

Fu Xiting’s heart trembled. After many days of guessing came true, he looked at Jiang Fu with a bit of helplessness: “My handwriting.”

Before marriage, she was an abandoned child in her hands.

After marriage, she couldn’t give up the medicine.

Rumor has it that the youngest daughter of the Jiang family has no talent.

Jiang Fu:? ? ? How should I act?

[From being indifferent to being obliged to you, the heroine is online, step by step approaching the truth to find the cause of her death]

Conception: Loving yourself is the beginning of being loved

- Description from novelbuddy

A Di [legitimate-born] daughter of a noble house turns into an abandoned daughter. No father to dote on her, no mother to love her, no problem. She uses one silver needle to save a dying man. What’s so unusual about a medical injection? She roams all over the world with a scalpel in her hand. Cutting throats, cutting open abdomens, cutting open skulls to mend bones. With amazing medical skills and ethics, she gathers a flock of officials, obtains the will of heavens, gains public favor, and receives Taizi’s [Crown Prince] doting. In the midst of a powerful momentum, her cheap father comes to reunite. She coldly refuses to go home or acknowledge ancestors.

“I was abandoned by you over and over again. Now you want to use familial affection to coax me back. You don’t want to recognize this daughter. My heart is cold, I want to leave. Beat it, father!”

- Description from Novelupdates