Hogwarts: I, the King of Slytherin

Traveling to the world of Harry Potter, Eric became an orthodox descendant of Slytherin, bound to the glory system.
Change people's stereotypes about Slytherin.
Destroy Dumbledore's plot against Slytherin.
Recruit the helpless Death Eaters and make them turn to the light.
Disciplining the noseless distant relative who ruined Slytherin's reputation.
While Eric was getting the reward.
Arrogant, ostentatious, self righteous...
These labels on Slytherin were also torn off by him one by one....