I Quit Being the Marchioness

In her past life, Elaine Preston, the dedicated but childless matriarch of the Marquess Manor, was betrayed and poisoned by the illegitimate children she raised. Reborn on the very eve they are to be formally welcomed into the manor, a hardened Elaine awakens. This time, her eyes are clear. She will play no one's stepping stone; her new life is for her own resolve and retribution.

It runs 65 short episodes on FunDrama and leans on revenge and second chance tropes, with each episode ending on a hook.

The draw here is the slow build to a payback that lands hard. On top of that: a lead who knows how it went wrong last time and plays it differently.

At roughly 1–2 hours 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.