The Spirited Daughter-in-law and the Mountain Man - Chapter 997 - getting married 2 (Monthly ticket extra 18)

Born as the thirteenth son of the grand Kingdom of Ironhelm, Prince Liam is far from being considered a contender in the race for the throne. With his father, King Elijah Orlean, having only eight years left to choose the next heir, Liam’s prospects are slim. Seen as the boy with the least mana talent, he is overlooked by the court, his siblings, and even his tutors.But appearances can be deceiving. At just thirteen years old, Liam is secretly an Expert Mage, capable of wielding magic with precision and power that even the most talented in the kingdom would envy. Determined to keep his abilities hidden, Liam embarks on a path of quiet preparation, honing his skills in secret while navigating the dangerous political intrigue of Ironhelm.

One day, the stuntman found that acquaintances and unfamiliar people were looking for him through various channels. Even someone from a certain department of the country came—

I exist in the darkness, disappear under the bright light, and will eventually devour the sun and turn into the shadow of all things… Known by people as the indescribable terror of darkness; the king of shadows; the dark day; the existence of the shadow of the world , is still just a somewhat special high school student, facing a weird death game…

- Description from novelbuddy

I’ve reincarnated as the reverse harem game’s villainess, the one and only step-daughter of the Eckart duke family.