Reincarnated As My Husband's Mistress - Chapter 50: [] Please stay out of this

Rudel Arses, the first born of one of the ‘Three Lords’ of the Courtois Kingdom, is from a corrupted family, but at 5 years old, he saw a dragon in the sky and his dark future as a villain changed. He was considered an idiot, but was that true? How would his effort to become a dragoon change the kingdom?

Arthur is an Atelier who works under pressure. When the curse of the Succubus activates his Netori System, Arthur is unable to resist his desire to win a woman's loyalty. There is no other reason for him to test a woman's loyalty that is easily shaken when his Netori System is activated.

The world that nurtured the civilization which reached the pinnacle of magic was on the verge of destruction.
The last survivor transmigrated to the past, when the magic civilization started growing, as countless mages were still fumbling their ways through the thorny paths of magic knowledge.
He, who came from the end of the magic era, aim to reach the pinnacle of magic.

- Description from Novelupdates

Kim Taejong once believed that death was the only true end—a final mercy.He was once a rising star in the game Rise of Legacy, hailed as the prodigy who would one day dominate esports.But at the peak of his career, a hand injury ruined everythingThe championship title he had spent his entire life chasing slipped away.Taejong blamed himself. The pain, the regret, the endless cycle of what-ifs—it was unbearable.So when an accident took his life, it felt like mercy.But death wasn’t the end.Taejong woke up in the body of Seunghoon—an unknown and struggling player who was desperately chasing the dream Taejong once had.But Seunghoon had neither the talent nor the skills. Just desperation and a working computer.