IU’s K-Dramas: Where to Start (and Why Tangerines Is the One)

Most people meet IU through a chorus. Then, somewhere around episode four of When Life Gives You Tangerines (폭싹 속았수다, 2025), they watch a teenage girl on Jeju named Ae-sun stop singing and start arguing — about poetry, about poverty, about the future her mother never got to have — and they forget, briefly, that they’re watching one of the most famous pop stars alive. That forgetting is the whole point. It’s also the reason her acting deserves a guide of its own.

Who they are

Lee Ji-eun — IU on stage — debuted as a singer at fifteen in 2008 and turned into a national fixture two years later with “Good Day,” the kind of song that gets played at school festivals for a decade afterward. She holds the record as the South Korean soloist with the most number-one singles, wrote the slyly self-aware “Palette” and the lullaby-soft “Through the Night,” and has headlined Seoul’s Olympic Stadium. By any reasonable measure she is one of the country’s biggest singer-songwriters, and she could have stopped there.

She didn’t. IU has been building an acting career in parallel for more than a decade, and not by coasting on her name. She played a fame-scarred idol in The Producers (2015), a Goryeo-era court lady in Moon Lovers: Scarlet Heart Ryeo (2016), a thousand-year-old hotelier with a temper in Hotel del Luna (2019), and — the role most actors point to when they argue she’s the real thing — a quietly furious young woman scraping by under crushing debt in My Mister (2018). None of those titles are covered on koroute, so think of them as the reading list rather than the syllabus. They tell you where her instincts were sharpened before the role that finally got her the trophies.

Where to start on koroute

Start with When Life Gives You Tangerines. It’s the only IU work covered here, and it happens to be the one that settled the question of whether she’s a singer who acts or an actress who also sings. The series tracks one couple across most of the latter half of the 20th century, and IU carries the first long stretch of it as the younger Ae-sun, a stubborn, word-drunk girl on Jeju who wants to be a poet in a place and time that has no use for one. The performance won her Best Actress at the Blue Dragon Series Awards and the Daesang — the grand prize — at the 2025 APAN Star Awards, and watching it, you understand why the jury wasn’t splitting hairs.

What makes it a good entry point isn’t the awards, though. It’s that the show asks her to do almost everything an actress can be asked to do — comedy, grief, defiance, the slow erosion of a dream — without ever letting her hide behind the songs. If you only have time for one, this is the one.

When Life Gives You Tangerines

The Korean title, 폭싹 속았수다, is a Jeju dialect phrase that roughly means “thank you for your hard work,” and the series earns that warmth the slow way. IU’s Ae-sun is the spine of it: a girl who recites poems to the sea, talks back to anyone who underestimates her, and refuses to shrink even when life keeps handing her reasons to. The scenes that stay with people aren’t the big ones — they’re the small acts of holding the line, the way she lets disappointment cross her face for half a second before swallowing it. Park Bo-gum plays Gwan-sik, the boy who loves her with infuriating patience, and the two of them make the early Jeju chapters feel less like a period drama than a memory you didn’t know you had. It’s a long sit, and worth every minute.

One honest note: that’s the extent of IU’s catalogue on koroute right now. My Mister, Hotel del Luna, and Moon Lovers are name-checked above because they’re essential to understanding her as an actress, not because you’ll find them here. If Tangerines convinces you — and it tends to — those are where you go next, on your own.

The short version: come for the voice you already know, stay for the actress you didn’t. Ae-sun is the proof, and she’s right here waiting.