Dragon King's Lost Queen

Four years ago, Iris, bearer of the Primordial Fire Seed, was betrayed by rogue dragons who sought to rip it from her body alive. She fled and gave birth to her son Finnegan in secret. Disguising the boy as a plush-dragon charm, she raised him alone. When Dragon King Kael tracks her down and saves her from a sudden attack, he takes her back to his estate under house arrest.

It runs 40 short episodes on FunDrama and leans on revenge, fantasy and secret identity tropes, with each episode ending on a hook.

If you came for revenge, the payoff is the slow build to a payback that lands hard. On top of that: a world with its own rules and a lead who learns to bend them.

At about 48–88 minutes in total, it's quicker to finish than most full-length series.

Start from episode 1 below; autoplay takes you to the next episode when one ends, and nothing needs a sign-up.