The Hidden Heir in Apron

Logan Drake, heir of a hidden family, is forced to marry. He disguises as a nanny in the Song family to choose among four daughters, including Vivian Carter. He solves their problems—misandry, disability, tantrums, and identity secrets. All four fall for him. He decides to take them all.

DramaBox released it as 82 bite-size episodes mixing billionaire and secret identity, made to watch on a phone in one sitting or a few.

The draw here is the hidden-wealth reveals and the people who misjudged the lead. On top of that: waiting for the truth about who the lead really is to come out.

At roughly 2–3 hours in total, it's quicker to finish than most full-length series.

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