Undercover in the Demon Sect, They Made Me Their Heir

Sent as an undercover spy into a dark sect, he rises through the ranks to become its top disciple. He only wants to steal their secrets and return home, but his stunning master and devoted junior protect him at all costs. Every clumsy mistake is hailed as genius strategy, accidentally crushing his former allies and crowning him their prophesied savior.

It runs 60 short episodes on iDrama and leans on revenge, billionaire and fantasy 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: the hidden-wealth reveals and the people who misjudged the lead.

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. It was added to DramaNext on Oct 20, 2026.