Our Beloved Summer (2021) official poster
📺 K-Drama Guide · Romance · Coming-of-Age

Our Beloved Summer

그 해 우리는 · 2021
✅ Completed · 16 eps
🎬 Netflix
⭐ 8.5 / 10 MDL
🔞 15+
⚡ Updated · Apr 16, 2026

📋 Drama Overview

Everything you need to know before you hit play.

Our Beloved Summer (2021) official poster
Completed
💗 Romance Must-Watch
Our Beloved Summer
그 해 우리는 (Geu Hae Woorineun) · 2021–2022 · South Korea
WriterLee Na-eun
DirectorKim Yoon-jin
Episodes16 eps · ~70 min each
⏱️ Binge Time18h 40m
AiredDec 6, 2021 – Jan 25, 2022
GenreRomance · Comedy · Coming-of-Age
Content Rating15+

Netflix
SBS
First Love
Second Chance Romance
Ex-Couple Reunion
Coming-of-Age
Documentary

Kook Yeon Su (Kim Da-mi) and Choi Ung (Choi Woo-shik) were high school opposites — she was driven and disciplined, he was an unbothered, daydreaming artist. Forced to film a documentary together for school, their bickering chemistry was captured on camera, and somewhere between the arguments, they fell in love. When it ended, it ended badly — and for ten years, they built their lives around never having to face each other again.

Then the old footage surfaces online, goes viral, and a production company wants a follow-up. Yeon Su, now at a PR firm, agrees for career reasons. Ung, now a reclusive but quietly successful illustrator, agrees without knowing she’s involved. The cameras roll again — and everything they buried starts rising back to the surface. Our Beloved Summer is a romance about two people who know exactly why they’re wrong for each other, and spend sixteen episodes figuring out why they can’t stay apart.

Episode Progress
16 / 16 ✅ Completed

⚡ Quick Verdict

One box. Everything you need to decide.

⭐ Worth it?YES — if patient with slow burn
⏱️ CommitmentVery High — ~19 hours total
💛 VibeWarm · Nostalgic · Quietly Aching
📺 Skip if…You need fast romance payoff

⭐ 8.5 / 10
· MDL Score · 45,000+ ratings

▶ Official Trailer

🎭 Cast & Characters

Twelve performances that make this story feel impossibly real — from the couple everyone rooted for to the friend who loved quietly.

Choi Woo-shik as Choi Ung in Our Beloved Summer (2021)
Choi Woo-shik
Choi Ung

Lead

Kim Da-mi as Kook Yeon Su in Our Beloved Summer (2021)
Kim Da-mi
Kook Yeon Su

Lead

Kim Sung-cheol as Kim Ji-ung in Our Beloved Summer (2021)
Kim Sung-cheol
Kim Ji-ung

Supporting

Roh Jeong-eui as NJ (Ji Soo-bin) in Our Beloved Summer (2021)
Roh Jeong-eui
NJ (Ji Soo-bin)

Supporting

Ahn Dong-gu as Gu Eun-ho in Our Beloved Summer (2021)
Ahn Dong-gu
Gu Eun-ho

Supporting

Jeon Hye-won as Jung Chae-ran in Our Beloved Summer (2021)
Jeon Hye-won
Jung Chae-ran

Supporting

Park Jin-joo as Lee Sol-i in Our Beloved Summer (2021)
Park Jin-joo
Lee Sol-i

Supporting

Lee Jun-hyuk as Jang Do-yul in Our Beloved Summer (2021)
Lee Jun-hyuk
Jang Do-yul

Supporting

Cha Seung Yeup as Kang Ji-woon in Our Beloved Summer (2021)
Cha Seung Yeup
Kang Ji-woon

Supporting

Lee Seung-woo as Im Tae-hoon in Our Beloved Summer (2021)
Lee Seung-woo
Im Tae-hoon

Supporting

Kwak Dong-yeon as Noo Ah in Our Beloved Summer (2021)
Kwak Dong-yeon
Noo Ah

Supporting

Lee Rang-seo as Charity volunteer in Our Beloved Summer (2021)
Lee Rang-seo
Charity Volunteer

Supporting

🍿 Where to Watch

Stream Our Beloved Summer on these platforms.

🎬 Episode Guide

All 16 episodes — spoiler-light recaps of every chapter of Ung and Yeon Su’s story.

Our Beloved Summer Episode 1 — I Know What You Did Last Summer
EP 01
I Know What You Did Last Summer
December 6, 2021 · SBS
In high school, disciplined top student Kook Yeon Su and unmotivated artist Choi Ung are polar opposites forced to film a school documentary together. Their bickering chemistry is captured on camera. Ten years later, that footage resurfaces online and goes unexpectedly viral — and both are approached to film a follow-up documentary, each unaware the other is involved.

Our Beloved Summer Episode 2 — 1792 Days of Summer
EP 02
1792 Days of Summer
December 6, 2021 · SBS
Yeon Su, now working at a PR firm, reluctantly agrees to the documentary for career reasons. Ung, now a reclusive but quietly successful illustrator, also agrees — still unaware she’s involved. The episode begins unraveling how their breakup actually unfolded, and just how deliberately they’ve been avoiding each other for nearly five years.

Our Beloved Summer Episode 3 — First Contact
EP 03
First Contact
December 13, 2021 · SBS
Yeon Su and Ung come face to face for the first time in years on the documentary set. The awkwardness is immediate and palpable — her sharp efficiency vs. his unbothered calm, exactly as it was in high school. Ji-ung, Ung’s childhood best friend who harbors quiet feelings for Yeon Su, watches the reunion from the sidelines with growing unease.

Our Beloved Summer Episode 4 — How It Started
EP 04
How It Started
December 13, 2021 · SBS
Flashbacks reveal how Ung and Yeon Su’s high school relationship blossomed — from reluctant documentary partners to genuine sweethearts. In the present, being filmed together begins stirring buried emotions in both of them. Yeon Su works hard to stay professional; Ung seems genuinely unbothered, or at least performs unbothered convincingly.

Our Beloved Summer Episode 5 — The Best Friend Problem
EP 05
The Best Friend Problem
December 20, 2021 · SBS
Ji-ung’s backstory takes center stage — his lonely childhood, and how Ung became his anchor as a friend. In the present, Ji-ung’s quiet feelings for Yeon Su grow more complicated as he watches her interact with Ung again. Yeon Su attempts to apologize to Ung for something unspoken from the past but cannot bring herself to say the words.

Our Beloved Summer Episode 6 — Old Warmth
EP 06
Old Warmth
December 20, 2021 · SBS
Documentary filming forces Ung and Yeon Su into increasingly personal territory, and old warmth starts creeping back in despite their best efforts to resist it. Ung’s art — quietly influenced by his feelings for Yeon Su all along — becomes an emotional throughline the cameras begin to notice. Ji-ung wrestles with his loyalty to his best friend versus his own unspoken feelings.

Our Beloved Summer Episode 7 — Overnight Distance
EP 07
Overnight Distance
December 27, 2021 · SBS
A filming trip puts Ung and Yeon Su in close proximity overnight, blurring their carefully maintained emotional distance. Yeon Su begins questioning whether she has truly moved on, while Ung’s guarded exterior starts cracking. NJ, a popular idol who follows Ung’s artwork, enters the picture with a growing personal interest in the man behind the illustrations.

Our Beloved Summer Episode 8 — The Reason She Left
EP 08
The Reason She Left
December 27, 2021 · SBS
NJ openly expresses admiration for Ung’s work, and a tentative friendship forms — making Yeon Su quietly, uncomfortably unsettled. The episode digs deeper into why Yeon Su ended things in high school: her fear of becoming a burden, her obsessive need for self-sufficiency, and the wound she’s never properly examined. Ji-ung begins to accept that his feelings for Yeon Su must remain unspoken.

Our Beloved Summer Episode 9 — The Breakup, Explained
EP 09
The Breakup, Explained
January 3, 2022 · SBS
The truth about the original breakup crystallizes: Yeon Su ended things because she feared her own vulnerability and believed she was holding Ung back. Ung, who never fully understood her reasoning, carries quiet resentment alongside lingering love. NJ begins to recognize, with graceful honesty, that Ung’s heart has always belonged to someone else.

Our Beloved Summer Episode 10 — The Confession
EP 10
The Confession
January 3, 2022 · SBS
Ung and Yeon Su share an emotionally charged moment that signals a potential reconciliation. Ji-ung confesses his feelings to Yeon Su in a subdued, aching scene — quietly, without expectation, knowing she won’t reciprocate. The documentary team captures footage far more emotionally raw and honest than anyone had anticipated when filming began.

Our Beloved Summer Episode 11 — Ripples
EP 11
Ripples
January 10, 2022 · SBS
Ji-ung’s confession ripples through the friend group in quiet, complicated ways. Ung and Yeon Su grow closer, and past wounds slowly begin to heal through honest conversation rather than grand gestures. NJ steps back from her feelings for Ung with remarkable maturity, channeling her emotions into her music instead of holding on.

Our Beloved Summer Episode 12 — Trying Again
EP 12
Trying Again
January 10, 2022 · SBS
Ung and Yeon Su begin cautiously rebuilding — acknowledging both the love and the hurt between them without pretending either one didn’t happen. The documentary nears completion, and both start reflecting on how much they’ve changed and how much hasn’t. Ji-ung processes his heartbreak with characteristic quiet dignity, redirecting his energy inward.

Our Beloved Summer Episode 13 — Mirror
EP 13
Mirror
January 17, 2022 · SBS
The documentary crew presents early footage, and seeing themselves on screen forces Ung and Yeon Su into uncomfortable self-reflection. Yeon Su’s grandmother — the woman who raised her and shaped her driven, self-reliant personality — takes on a more prominent emotional role. Ung begins articulating through his art what he still struggles to say with words.

Our Beloved Summer Episode 14 — Where She Came From
EP 14
Where She Came From
January 17, 2022 · SBS
Yeon Su opens up about the grief and financial instability of her upbringing — the root of her guarded, fiercely self-reliant personality. Ung listens fully for the first time, and genuine understanding begins to replace years of old resentment. Their emotional intimacy deepens, but external pressures — Yeon Su’s demanding job and mounting public attention from the viral documentary — threaten to complicate things again.

Our Beloved Summer Episode 15 — No More Running
EP 15
No More Running
January 24, 2022 · SBS
Ung and Yeon Su make a definitive choice to stop running from each other — openly acknowledging that they want to try again, this time without the fear and the armour. Ji-ung finds a measure of peace, redirecting his energy toward his own filmmaking career and personal growth. NJ releases a song quietly inspired by her experience with unrequited love, closing her arc with grace and maturity.

Our Beloved Summer Episode 16 — Our Beloved Summer
EP 16
Our Beloved Summer
January 25, 2022 · SBS
Ung and Yeon Su officially reconcile — both having grown substantially from the people they were in high school and in the painful years after. Yeon Su lets go of her rigid self-sufficiency and accepts that love does not have to mean weakness. Ung presents a completed body of work tracing their entire journey from high school to now. Ji-ung steps into a new chapter at peace with his choices. The documentary is released, and the drama closes with Ung and Yeon Su walking together into an ordinary, unhurried future.

🏁 Ending Explained

Full spoilers ahead — everything that happens in the finale and what it all means.

⚠️
Spoiler Warning — This section covers the full finale of Our Beloved Summer. Stop here if you haven’t finished the series.

The documentary is finally complete — and so are they. Episode 16 opens not with a dramatic confrontation or a tearful confession, but with something much more disarming: ordinariness. Ung and Yeon Su, having already made their choice in Episode 15, are simply together. The finale earns that simplicity by understanding exactly what this drama has always been about — not the reunion itself, but the question of whether two people who hurt each other badly can grow into versions of themselves capable of doing better.

Our Beloved Summer (2021) Episode 15 — No More Running

Yeon Su’s breakthrough is the emotional spine of the entire series. Her arc has always been about the armour she built in childhood — the self-sufficiency that protected her through poverty and grief but eventually became a wall between her and anyone who loved her. In the finale, she dismantles it. Not in a single cathartic speech, but in small, concrete ways: letting Ung in without immediately calculating the cost, asking for help without framing it as failure. The writing is careful enough to show us this is work, not magic — and that makes it land.

Ung’s arc completes with the finished body of work he presents — a visual record of everything he couldn’t say out loud. His illustrations, which have quietly traced his love for Yeon Su across the entire series, form a kind of confession that bypasses language entirely. The gesture is very Choi Ung: indirect, unhurried, completely sincere. Ji-ung, for his part, gets the resolution he deserves — not a redemption arc or a consolation prize, but dignity. He steps forward into his own story, and the show allows that to be enough.

Our Beloved Summer (2021) Episode 1 — I Know What You Did Last Summer

The title’s meaning only fully lands in the finale. “Our Beloved Summer” isn’t about a single season — it’s about every moment they were truly present with each other, in high school and in the uncomfortable present they film themselves inhabiting. The documentary is released, the cameras are off, and they’re still there. That’s the ending: no airport, no last-minute obstacle, no grand speech. Just two people who grew up, figured themselves out, and chose each other again — quietly, on purpose. The most romantic thing the show ever does is let that be enough.

✍️ KDramaWorlds Editor’s Take

Our honest read on why this drama is worth your time — and who it’s for.

💗 Quietly Romantic🍂 Nostalgic🎨 Artistic Soul💔 Earned Heartbreak

There’s a particular kind of K-drama that doesn’t try to manufacture urgency — no memory loss, no terminal illness, no third-act villain reappearing with new information. Our Beloved Summer belongs to that rare category. What it offers instead is Choi Woo-shik and Kim Da-mi in two of the most natural, lived-in romantic performances of their careers. They don’t play a couple so much as they inhabit one — the chemistry so unforced it borders on documentary itself. The show’s central structural conceit (a documentary about their high school relationship going viral and forcing a follow-up) is clever enough to serve the story without ever overwhelming it, and director Kim Yoon-jin shoots both timelines with the same warm, slightly overexposed intimacy, as though everything is already a memory. If you enjoy Twenty-Five Twenty-One or Hometown Cha-Cha-Cha, this belongs in your queue immediately.

Our Beloved Summer (2021) — cinematic still

The show’s most divisive element is also its most honest: it’s genuinely slow. Not slow in the way bad dramas are slow — not padded or repetitive — but deliberately, architecturally unhurried. Episodes 7 through 10 in particular ask you to sit with discomfort, with two people circling each other without resolution, which can test patience if you’re used to romance dramas that keep the reunions coming. The reward is a middle section that builds emotional density most dramas skip entirely in favour of plot momentum. Kim Sung-cheol’s supporting arc as Ji-ung is quietly devastating — a man who loves two people (his best friend, the woman he can’t have) with complete selflessness, and the show honours that love by refusing to diminish it into a plot obstacle.

At 16 episodes, it runs slightly long — there are stretches where you feel the pacing choice rather than just experiencing it. But the finale earns the runtime. What Our Beloved Summer ultimately argues is that the most romantic thing two people can do isn’t a grand gesture or a perfectly timed confession — it’s growing up enough to deserve each other. Choi Woo-shik and Kim Da-mi make you believe it completely. It’s the kind of drama that doesn’t announce itself as a classic — it just quietly stays with you for weeks.

👍👍👍 BEST FOR 👍👍👍
💗 Fans of slow-burn, emotionally grounded romance
🎨 Viewers who love a quietly artistic male lead
🍂 Anyone who wants a drama that rewards patience with warmth

⚖️ Final Verdict
What works
Choi Woo-shik and Kim Da-mi — chemistry that feels effortlessly real
Kim Sung-cheol’s Ji-ung arc — quietly one of the best supporting turns of 2021
Documentary-within-a-drama structure that earns its emotional weight
A finale that trusts ordinariness instead of spectacle

What to know first
Episodes 7–10 are deliberately slow — not a flaw, but a commitment
Very low conflict — this is a drama about feelings, not events
The breakup reason takes longer to surface than some viewers expect
16 episodes — slightly overlong for a story this intimate in scope

8.5 / 10If you can settle into its pace, this is one of the most emotionally honest K-drama romances of the 2020s.

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