The Mermaid I Bullied Is My Daughter

Short-form drama fans, this one goes down easy and hits hard. On the surface this is a Fantasy / Revenge serial, but underneath it is a story about payback served cold — and "The Mermaid I Bullied Is My Daughter" plays both layers for all they are worth.

Marina is a half-mermaid orphan taking the academy's worst abuse — including a wound from the woman who has spent a decade searching for her without knowing her. Royal blood turns the bullying into a throne conspiracy, and Marina ends up protecting both families instead of avenging herself. At 95 episodes it is the longest entry here; the mother-daughter thread is what keeps it human.

Tropes on the menu: strong female lead, revenge. The pacing is relentless in the best way: no filler, just escalation.