MTL - Manga Guidebook - Chapter 121 "Firefly Forest" animation (below)

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.

Twenty years ago, she was taken in as the Lin family’s young heiress through a twist of fate. But mistakes would eventually be corrected one day. When the real daughter of the family returned and her foster parents begged her to stay, she obliged. Unbeknownst to her, this was actually a scheme disguised as familial affection. They only kept her around to squeeze her dry of all her value!

When her once-wealthy family falls into ruin, Elara Vance has only one option to protect them: marry the man responsible for their downfall, Damien Arclight, a ruthless business tycoon with a hidden vendetta.What begins as a cold-blooded deal soon spirals into a web of secrets, betrayals, and dangerous desires. Elara must navigate high society, corporate warfare, and her growing feelings for the enemy she swore to hate, all while uncovering the truth behind her family's collapse.Is love even possible when the marriage starts as a trap? And will the truth destroy them both?Genres: Romance, Drama, Enemies-to-Lovers, Revenge, High SocietyThemes: Arranged marriage, family loyalty, slow-burn romance, power play

She is the slow-witted idiot of the Prime Minister’s Residence. Everyone bullies her. He is the most respected and unfeeling Prince, with frightening ability and absolute envy! Together, they are conferred an imperial edict of marriage.