Security Guard Billionaire

Leo concealed his identity and fell in love with Rachel, founding Starlight Fashion to wait for her return. However, at her homecoming banquet, Rachel betrayed him to curry favor with Ethan, the heir of the Miller family. Leo unveiled his true identity on the spot, with his mother Victoria arriving with lavish gifts to humiliate the snobs.

HappyShort released it as 70 bite-size episodes mixing revenge, CEO romance and billionaire, made to watch on a phone in one sitting or a few.

The draw here is the slow build to a payback that lands hard. On top of that: the power gap between the leads and who ends up holding the cards.

At roughly 1–3 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.