MTL - I, The Grandson of Garp, Scared Luffy Into Tears - Chapter 8

Looking at the survivors, their faces the picture of despair, surrounded by zombies at the foot of the towering walls, Tang Ye stretched his arms wide and shouted: “Welcome to paradise!”

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?

- Description from Novelupdates

Past life, her spirit root was dug out from her body. She had wholeheartedly dedicated herself to the just path, but she was sentenced as an evil demonic cultivator.