All That We Loved (2023) official poster
📺 K-Drama Guide · Romance · Youth · Teen

All That We Loved

우리가 사랑했던 모든 것 · 2023
✅ Completed · 8 eps
🎬 TVING · Viki · Viu · Prime Video · Apple TV+
⭐ 7.6 / 10 MDL 🔞 15+
⚡ Updated · Jul 14, 2026

📋 Drama Overview

Everything you need to know before you hit play.

All That We Loved (2023) official poster
CompletedFRIENDSHIP OVER ROMANCE PICK
All That We Loved
우리가 사랑했던 모든 것 (Uriga Saranghaessdeon Modeun Geos) · 2023 · South Korea
WriterKang Yoon
DirectorKim Jin-sung
Episodes8 eps · ~35 min each
Where to Watch✅ Viki, Prime Video, Apple TV+
⏱️
Binge Time4h 40m
AiredMay 5 – May 26, 2023
GenreRomance · Youth · Teen
Content Rating15+

TVINGVikiViuPrime VideoApple TV+
Cellular MemoryLove TriangleOrgan TransplantHigh SchoolComing-of-Age

What happens to a friendship when one boy’s kidney — and maybe some of his memories — end up inside his best friend’s body? That’s the premise All That We Loved commits to completely: Go Yoo, a basketball star with nothing to prove, donates a kidney to Go Joon-hee, his brilliant but physically frail best friend, when Joon-hee’s chronic kidney failure turns life-threatening. It’s an act of loyalty that should end the story on a high note. Instead, it’s where the real complications begin.

Recovery brings side effects nobody expected — Joon-hee starts flinching at pigeons he never used to fear, favoring his non-dominant hand, and worst of all, developing feelings for Han So-yeon, the transfer student Go Yoo has already fallen for. Cellular memory syndrome turns a love triangle into something stranger and more intimate: two friends now sharing pieces of the same inner life, unsure where one of them ends and the other begins.

Episode Progress
8 / 8 ✅ Completed

⚡ Quick Verdict

One box. Everything you need to decide.

⭐ Worth it?Yes — a short, tender teen drama built on a genuinely odd premise
⏱️ Commitment8 episodes · ~35 min each
💛 VibeCellular-memory love triangle wrapped around an unbreakable friendship
📺 Skip if…You need your love triangles resolved with a clean winner, not a shared bond

⭐ 7.6 / 10
· MDL Score · 3,424 ratings

▶ Official Trailer

🎭 Cast & Characters

The friendship, the transplant, and the girl neither boy expected to fall for at the same time.

Sehun as Go Yoo in All That We Loved (2023)
Sehun
Go Yoo

Lead

Cho Jun-young as Go Joon-hee in All That We Loved (2023)
Cho Jun-young
Go Joon-hee

Lead

Jang Yeo-bin as Han So-yeon in All That We Loved (2023)
Jang Yeo-bin
Han So-yeon

Supporting

Song Jae-rim as Dr. Go (Adult Joon-hee) in All That We Loved (2023)
Song Jae-rim
Dr. Go (Adult Joon-hee)

Supporting

Jung Yoo-jin as Han So-yeon (Adult) in All That We Loved (2023)
Jung Yoo-jin
Han So-yeon (Adult)

Supporting

Lee Seung-joon as Go Yoo's Father in All That We Loved (2023)
Lee Seung-joon
Go Yoo’s Father

Supporting

Park Eun-hye as Go Yoo's Mother in All That We Loved (2023)
Park Eun-hye
Go Yoo’s Mother

Supporting

Jeong Hye-seon as Go Joon-hee's Grandmother in All That We Loved (2023)
Jeong Hye-seon
Go Joon-hee’s Grandmother

Supporting

Jeon Young-in as An Sun-tak in All That We Loved (2023)
Jeon Young-in
An Sun-tak

Supporting

Lee Ara as Shim Jung-eun in All That We Loved (2023)
Lee Ara
Shim Jung-eun

Supporting

Baek Min-hyun as An Sun-tak (Adult) in All That We Loved (2023)
Baek Min-hyun
An Sun-tak (Adult)

Supporting

Kwon Hyeok-beom as Jeon Sang-kyu in All That We Loved (2023)
Kwon Hyeok-beom
Jeon Sang-kyu

Supporting

🍿 Where to Watch

Stream All That We Loved on these platforms.

📺 Episode Guide

Spoiler-light recaps — enough to remember where you left off, nothing that ruins the ride.

All That We Loved Episode 1 — First Love
EP 01
First Love
May 5, 2023
The show opens on Go Yoo and Go Joon-hee already on operating tables in 2006, which tells you before anything else that this friendship is the story’s real stakes, not a subplot to the romance. The flashback that follows sets up an easy contrast — Yoo the popular basketball player, Joon-hee the frail top student — and then complicates it immediately with Han So-yeon, a transfer student who catches both boys’ attention before either of them registers what that’s going to cost them.

All That We Loved Episode 2 — The Nurse's Office
EP 02
The Nurse’s Office
May 5, 2023
Yoo and Joon-hee both end up drawn to So-yeon despite wanting completely different things from a girl, which the show plays for easy, low-stakes comedy while it still can. Joon-hee’s tinnitus keeps flaring up in the background, an early symptom the episode doesn’t dwell on yet — but it’s already clear his body is working against him faster than anyone around him realizes.

All That We Loved Episode 3 — Jun Hee's Illness
EP 03
Jun Hee’s Illness
May 12, 2023
Joon-hee collapses after a beating, and the ER visit uncovers chronic renal failure, the same condition that already took his older brother. Yoo doesn’t hesitate the way the story might have let him — he offers his own kidney almost before anyone else processes what’s happening, and both families’ objections barely register against his resolve. It’s the episode where the friendship stops being subtext and becomes the entire premise.

All That We Loved Episode 4 — Love Triangle Has Begun
EP 04
Love Triangle Has Begun
May 12, 2023
Post-surgery, Joon-hee starts flinching at pigeons — Yoo’s old phobia, never his own — and the show lets that single strange detail carry the weight of an entire diagnosis. Cellular memory syndrome isn’t named outright yet, but it doesn’t need to be; the audience can see it landing before the characters can name it. Both boys keep chasing So-yeon anyway, oblivious to how much more complicated that pursuit is about to get.

All That We Loved Episode 5 — What's Actually His
EP 05
What’s Actually His
May 19, 2023
Joon-hee’s symptoms keep escalating — sharper eyesight, a newly dominant hand — and he has no framework for reconciling a body that increasingly doesn’t feel like his own. Yoo, meanwhile, gets his own gut-punch: So-yeon has a compulsive stealing habit, and finding out breaks something in a relationship that had barely started.

All That We Loved Episode 6 — The Necklace
EP 06
The Necklace
May 19, 2023
Yoo finds Joon-hee’s grandmother’s lost necklace among So-yeon’s stolen items, and the discovery lands harder than any confrontation could. So-yeon can’t explain the compulsion even when asked directly, leaving the romance stalled in a place neither of them can move past. Joon-hee’s borrowed instincts get more aggressive in the meantime, and a confrontation with bullies makes the transferred cellular memory impossible to write off as coincidence anymore.

All That We Loved Episode 7 — Shared Nightmares
EP 07
Shared Nightmares
May 26, 2023
The syndrome tightens its grip — shared nightmares, even Yoo’s nut allergy showing up in Joon-hee’s body — until the connection between the two friends stops looking like a metaphor and starts looking like something closer to literal transference. Yoo tries to pull Joon-hee away from So-yeon before her secret does more damage, and the argument that follows is the first real crack in a friendship that’s survived everything else. A present-day thread also surfaces here: adult Han So-yeon, searching for a Dr. Go whose identity the show is clearly saving for later.

All That We Loved Episode 8 — Friendship Has No Ending
EP 08
Friendship Has No Ending
May 26, 2023
The confrontation between Yoo and Joon-hee finally forces both of them to say what they actually feel — about So-yeon, but mostly about each other. The Dr. Go mystery resolves exactly where the show has been quietly pointing: he’s adult Joon-hee, and he’s spent years looking for the friend the story never lets you forget was the point all along. Adult So-yeon engineers their reunion, and the finale closes less on romance than on two men who never stopped being each other’s most important relationship.

🏁 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 All That We Loved. Stop here if you haven’t finished the series.

What actually happened Dr. Go turns out to be adult Go Joon-hee, and the present-day mystery the show seeded from episode seven resolves into something simpler than a twist: he’s spent years since high school searching for Go Yoo, the friend whose kidney — and whose accidental memories — he’s been carrying literally and figuratively ever since. Adult Han So-yeon is the one who finally engineers their reunion, closing a loop that started with a transplant and never really stopped being about the two boys at its center.

All That We Loved (2023) — Adult Go Joon-hee is revealed as Dr. Go in the finale of All That We Loved

The love triangle was always the smaller story So-yeon matters to the plot, but the finale makes clear she was never really the point — she’s the mechanism that reveals how deeply Yoo and Joon-hee’s bond runs, not the prize either of them was actually competing for. Neither boy ends up with her in any conventional sense, and the show doesn’t treat that as a loss.

Cellular memory syndrome gets a quiet, humane answer The show never over-explains the science of cellular memory, and the finale doesn’t start now — Joon-hee’s inherited habits and fears stay exactly as mysterious as they were in episode four. What the ending does resolve is the emotional logic: whatever passed between the two friends through that transplant, it made them more like each other, not less connected. That’s presented as a gift, not a complication to be cured.

All That We Loved (2023) — Go Yoo and Go Joon-hee reunite as adults in All That We Loved

An Sun-tak and the supporting cast get closure too The finale spares a little room for the friend group around Yoo and Joon-hee, giving An Sun-tak and Shim Jung-eun’s smaller arcs enough resolution that the ending doesn’t feel like it forgot everyone who isn’t in the central triangle.

The KDW verdict All That We Loved ends by proving its own title literally — friendship, first love, and a body that stopped being fully one person’s own are all things the finale insists on holding onto rather than resolving cleanly. It’s a short show that earns its ending by refusing to let the romance overshadow the two friends who were the actual center of it the whole time.

All That We Loved (2023) — Go Yoo and Go Joon-hee's enduring friendship in the ending of All That We Loved

✍️ KDramaWorlds Editor’s Take

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

🫀 Cellular Memory
🏀 Basketball Star & Bookworm
💔 Love Triangle, Different Stakes
🤝 Friendship First

All That We Loved borrows a dual-timeline structure that Korean youth dramas have used well before — Reply 1994 built an entire identity mystery around a similar device — but here the present-day thread isn’t a puzzle about who marries whom. It’s about which friend actually became Dr. Go, and the show plays that mystery with a surprisingly light touch given how much emotional weight it’s carrying. Sehun’s Go Yoo doesn’t get the flashier arc, but his steadiness is what makes Joon-hee’s transformation land.

All That We Loved (2023) — cinematic still

The cellular-memory hook could have played as gimmicky, but the show treats Joon-hee’s inherited habits — the pigeon phobia, the nut allergy, the sudden fearlessness — as genuine identity questions rather than quirky trivia. It’s the kind of present-day framing device Twenty-Five Twenty-One made famous, used here in miniature and with a gentler payoff.

So-yeon’s kleptomania subplot is the show’s least resolved thread — it gets introduced with real weight and then mostly drops out of the back half once the friendship story takes over. Eight 35-minute episodes is a tight runway, and the show clearly decided which relationship mattered more; So-yeon’s own arc pays the price for that choice.

👍👍👍 BEST FOR 👍👍👍
🤝 Anyone who wants a love triangle where the friendship outweighs the romance
🫀 Viewers curious about a soft sci-fi hook used for emotional rather than horror purposes
⏱️ Fans of short-format K-dramas that don’t overstay their welcome

⚖️ Final Verdict
What works
Sehun and Cho Jun-young’s friendship carries more emotional weight than the love triangle around it
The cellular-memory premise stays genuinely strange instead of resolving into a tidy explanation
The present-day Dr. Go mystery pays off instead of feeling like a bolted-on twist

What to know first
Han So-yeon’s kleptomania subplot gets dropped more than resolved
Eight 35-minute episodes leave the supporting cast thin
The romance is deliberately secondary — go in expecting a friendship story first

7.6 / 10— A short, tender teen drama that uses a strange transplant premise to tell a real story about friendship outlasting first love.

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KDW Editor Editorial Team, KDramaWorlds

This review was written and fact-checked by the KDW editorial team — a small group of K-drama viewers who watch every title before writing about it. No screeners, no synopsis-only takes.

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