MTL - Genius Demon Empress - Chapter 840 Turned out to be him

Charles or rather Xavier Dame was your average loner—broke, ignored, and invisible to the girls. But everything changes the day he awakens the [Harem Points System], a mysterious power that rewards him for physical and emotional interactions with women.From casual touches to heart-throbbing confessions, every action earns him points that can be exchanged for powerful skills, items, and stat boosts. Suddenly, he's not just charming—he's unstoppable.But things aren't that simple. The more hearts he wins, the more enemies he makes. From jealous rivals to yandere lovers and hidden organizations interested in his strange system, Ethan will need more than luck to survive his rise from zero to ultimate harem king.Can he keep his growing group of powerful beauties happy... and alive?

After transcending to a new world, Ye Xuan miraculously obtained the Swallowing System.

Anyone who could construct a stable Spell Model could become a Wizard — that was the Wizards’ ultimate secret! Having been given a new life as the son of an aristocrat and armed with a super quantum computer from his past life, Spell Models came as easily as breathing to Merlin. With this overwhelmingly huge advantage, would Merlin become the greatest Grand Wizard of all time?