Raising a Professor in Harry Potter: Saving Young Snape from the Start

Jiang Xiaoyu transmigrates into the world of HP and gets bound to the “Magic Companion Development System.” Starting at age five, he finds a badly injured little Snape on a rainy night. “Don’t be afraid. I’ll take care of you from now on.” He uses the System’s treasury to buy a shop in Diagon Alley and uses his foreknowledge of the plot to smooth Snape’s path into the magical world. At Hogwarts, he raises a gloomy, solitary young wolf into a Potions master loyal only to him. Double agent? Horcrux hunt? Prophecy crisis? Jiang Xiaoyu gives a cold laugh: Nobody gets to lay a hand on the person I raised. Years later, in the dungeons, the Potions master pins him against the wall, his black robes sweeping around him, carrying the scent of potions. “Xiaoyu, was this why you saved me and raised me back then?” Jiang Xiaoyu loops his arms around his neck, smiling just as he did when they first met. “What else, Professor?” I transmigrated here not to save the world, but to raise you, my Severus. --- [Redemption and raising him + System power fantasy + A subversion of the original] See how this transmigrator with a knack for teasing turns the young professor into a devoted powerhouse.