Becoming the Demon King at Hogwarts

Egio Holmes.

The finest Dark Lord of all time, with unmatched talent and boundless ambition!

He will rise to supremacy, beginning at Hogwarts, and extend his evil grasp across the wizarding world until he controls the entire world!

Grindelwald will praise you, Voldemort will bow at your feet, the Ministry of Magic will only dare to bend the knee before you, and the entire wizarding world will be powerless to defy your orders!

Restore the glory of wizards, drive reform in the wizarding world, erase the shadow of the first two Dark Lords' failures, and rise above all living beings. This is the System's ultimate goal in cultivating its Host!

Egio thinks being a Dark Lord doesn't sound all that appealing. Could he be a White Lord instead?

Accept this System and receive a controllable Obscurus as your beginner's reward!

Well, it's not like he can't consider it.

And so, the greatest Dark Lord in history was born!