Gosu, Hugungeuro Kkaeeonada

Nyeon-Bi Cheon, a former expert in deviant martial arts, dies after being poisoned by her lover, Won Gae, a member of the True-spirited Sword sect. She is reborn as Noble Lady So-Yeo Cheon, a concubine in the imperial palace. In this new life, she must use the knowledge from her previous existence to manage the challenges and relationships she encounters within the palace.