Diving Queen: Against All Depths

DramaWave released it as 53 bite-size episodes, made to watch on a phone in one sitting or a few.

Expect fast pacing and a twist at the end of nearly every episode.

The whole series takes roughly 1–2 hours, so it's an easy binge.

Start from episode 1 below; autoplay takes you to the next episode when one ends, and nothing needs a sign-up.