The Boss Girl Takes Over Hogwarts

[I, Cassandra Malfoy.]

[Am the finest Slytherin, with ambition on full display!]

[Am the pure-blood family's brightest star, Hogwarts' eternal pride!]

[Voldemort will fall at my feet, the Ministry of Magic will bow before me, and the entire wizarding world will submit to my leadership.]

[Restoring the glory of magic and rising above all others to the highest throne: that is my ultimate goal!]

“Wait, who are you? What are you going on about, talking to yourself like that?”

Eleven-year-old Cassandra, with golden curls and emerald-green eyes, listened to a voice declaiming grandly beside her ear, utterly bewildered.

“Who wants to be the supreme ruler of the wizarding world? I just want to learn a little magic, hide away from the coming chaos, and spend the rest of my life lazing around in the Muggle world!”

“Don't go messing things up!”

[Accept this System's guidance, and your beginner's reward will be Obscurus-level magical power.]

“...”

“Maybe... I should give it a try?”