If you want science fiction that respects its own premise, Duty After School is available in the US on Amazon Prime Video and Rakuten Viki, and in the UK on Amazon Prime Video right now. A compact run that never overstays its welcome. 105 people have weighed in on TMDB, and the verdict leans heavily positive. Watch it for Kim Ki-hae — the performance elevates material that could easily tip into self-seriousness. There is no real reason to keep putting it off — it is right there on Amazon Prime Video.

There is a reason Duty After School keeps coming up in conversation. Duty After School treats its concept seriously enough to follow it all the way through. When mysterious alien spheres start invading the world, high school students are called upon to join the world's first war against extraterrestrial forces. Kim Ki-hae and Shin Myung-sung lead a cast that never lets the concept overwhelm the characters. It was aired in 2023. The world-building is meticulous enough to sustain multiple rewatches, with details early on that only make sense later. The consistency throughout is what elevates it — not every moment is the best, but none of them are a reason to stop watching.

Duty After School is satisfying on multiple levels — something to watch and something to think about after. Viewers who responded to All of Us Are Dead will find a lot to like here too. It is a manageable watch, easy to fit into a single week. Kim Ki-hae anchors it with a performance that makes the more abstract moments feel personal. If you have been burned by ambitious sci-fi before, this is the exception.

Duty After School wrapped up in 2023, created by Ha Il-kwon — and 1 season is available to watch from start to finish. Find exactly where it's streaming below, and TV Butler Pro's free voice app makes it effortless to track your progress as you go. Just say the name, and Butler finds it instantly, tells you which service has it, and remembers exactly where you left off.