Goemul Yeogisaneun Yugahyujigeul Wonhanda

Lucia, the commander of the Black Knights belonging to the imperial family and the youngest Sword Master on the continent. Lucia's nickname was 'Black Monster'. Living in seclusion for 40 years. At the age of 92, Lucia, who returned to when she was 25 years old just before her death, regrets the mistakes she made in her past life. The terrible death of the young saint, the seal that was opened in the name of the temple's sacrifice... and she was the one who brought the saint to the temple. Now that she has been given another chance, Lucia decides not to repeat the same mistake and becomes the mother of the young saint.

"Your Majesty, I should take childcare leave."

(Source: Naver, translated)