His Brother's Secret Substitute: Married to the Dying Heir

VibeShort released it as 25 bite-size episodes mixing billionaire, marriage drama and secret identity, made to watch on a phone in one sitting or a few.

If you came for billionaire, the payoff is the hidden-wealth reveals and the people who misjudged the lead. On top of that: a marriage that starts on the wrong foot and has to be earned.

Plan on about 30–55 minutes from the first episode to the finale.

Press play on episode 1 and DramaNext moves on to the next one by itself. No account and nothing to install.