The Good Student Went Wild — Episode 10

Hela, a gifted half-Muggle witch, was dumped by her social-climbing dad and bled dry by her uncle after her mom died. When jealous Lilith sends Caleb to seduce her and tank her grades, Hela plays along-faking ruin while secretly grinding in a hidden room. On N.E.W.T. day, her perfect score crushes Lilith, exposes her dad, and dumps the leeches.