archytele The Vault
Season guide

LOONA TV: Season 3 – HaSeul

20 episodes Premiered Dec 15, 2016 Updated Sep 26, 2026
Previously on LOONA TV

Season 3 Lore Primer

Key plot threads, lore context, and character stakes you need to remember before diving into this season.

  • ⚡ Directly follows the overarching narrative developments of LOONA TV Season 2.
  • ⚡ Faction dynamics and core character alliances shift under escalating external stakes.
  • ⚡ Crucial mysteries introduced previously reach key turning points and narrative reckonings.
  • ⚡ Sets up serialized story arcs that build directly toward the climactic season finale.
Advertisement
Advertisement
Season 3 Episodes

Episode Guide

🛡️ SPOILER SHIELD

Season 3 Progress Shield

Future titles & synopses blurred. Tap "Reveal" on any card to peek.
Binge Efficiency Engine

Season 3: Filler vs. Essential Canon

Filter episodes by narrative weight. Focus on essential mytharc and skip standalone side quests.

15%
85%
Mytharc (3): Crucial lore & season climaxes
Core (17): Character development & subplots
Side Quest (0): Standalone / filler
S3·E1 Mytharc

Episode 39 - HaSeul

Dec 15, 2016 · 1 min

HaSeul’s first episode and she is at the airport, ready to depart for Iceland to film Let Me In, she is so happy to be debuting. She copies HeeJin’s silly pose from the first episo

S3·E2 Core

Episode 40 - HaSeul

Dec 16, 2016 · 1 min

HaSeul tells her back story of becoming the third member – she struggled during her audition and did not do well with the choreography part. She cried afterwards and her friends co

S3·E3 Core

Episode 41 - HaSeul

Dec 18, 2016 · 1 min

HaSeul is about to board her flight – 12 hours to Amsterdam and then 9 hours layover followed by another 3 hours flying! After 26 hours, she finally arrives in Iceland.

S3·E4 Core

Episode 42 - HaSeul

Dec 19, 2016 · 1 min

Everyone is nervous about the weather in Iceland, after leaving the airport, HaSeul experienced Iceland’s wind and preview scenes are shown of the extreme weather in Iceland while

S3·E5 Core

Episode 43 - HaSeul

Dec 20, 2016 · 1 min

HeeJin and HyunJin are at back at the airport, about to board a plane to London to meet up with HaSeul after she finishes filming in Iceland, HyunJin says HaSeul has a lovely voice

S3·E6 Core

Episode 44 - HaSeul

Dec 22, 2016 · 1 min

HeeJin and HyunJin are waiting at the airport for HaSeul, it took 12 hours to fly to Amsterdam and then 3 hours waiting for their connecting flight so the girls are anxious to join

S3·E7 Core

Episode 45 - HaSeul

Dec 25, 2016 · 1 min

Filming for Let Me In is underway, HaSeul has become a man (BoiSeul) and she says she is not cold and it doesn’t matter because she will debut soon. HaSeul works hard to film scene

S3·E8 Core

Episode 46 - HaSeul

Dec 26, 2016 · 1 min

Filming for Let Me In continues, HaSeul is now a girl again and later becomes a penguin. “Do you know how the penguin cries? Peng Peng?” The crew move on to a new location to conti

S3·E9 Core

Episode 47 - HaSeul

Dec 27, 2016 · 1 min

The first day of filming Let me In is complete, the crew travel to their hotel but two of the cars stop on the way because of a flat tire so HaSeul hitches a ride with the wardrobe

S3·E10 Core

Episode 48 - HaSeul

Jan 1, 2017 · 1 min

HaSeul says that there is a seal outside but she can’t go and see it because she is busy getting her hair and makeup done. A crew member asks her if she wants to get an umbrella an

S3·E11 Core

Episode 49 - HaSeul

Jan 2, 2017 · 1 min

The second day of filming has begun and it is raining a lot in Iceland, HaSeul is struggling to move naturally because of the cold weather. She keeps her spirits up as the team con

S3·E12 Core

Episode 50 - HaSeul

Jan 4, 2017 · 1 min

Filming for Let Me In has finished and HaSeul is at the airport ready to go to London. HeeJin and HyunJin have been waiting for 3 hours to see HaSeul, HaSeul wonders where her babi

S3·E13 Core

Episode 51 - HaSeul

Jan 5, 2017 · 1 min

HeeJin and HaSeul have to take a train to reach the right gate, their manager asks “What if a handsome British man takes this train?” and HyunJin and HeeJin share a giggle. HaSeul

S3·E14 Core

Episode 52 - HaSeul

Jan 6, 2017 · 1 min

HaSeul tries to open the van door by saying Open Sesame and the three girls head off to breakfast, HyunJin points out beautiful pigeons and HeeJin is shocked at her. The girls head

S3·E15 Core

Episode 53 - HaSeul

Jan 8, 2017 · 1 min

HaSeul has become BoiSeul again, HeeJin claims it’s her older brother. The concept for HaSeul’s photoshoot is The Little Prince. HaSeul goes to change clothes and becomes a girl ag

S3·E16 Core

Episode 54 - HaSeul

Jan 9, 2017 · 1 min

The episode starts with a throwback to Japan where HyunJin confesses that she wants to do an earring CF and a montage of her showing off her earrings is played.

S3·E17 Core

Episode 55 - HaSeul

Jan 10, 2017 · 1 min

HeeJin, HyunJin and HaSeul are doing a photoshoot in London and go to a Korean Restaurant, suddenly Vivid starts playing while they’re in the restaurant and the girls are surprised

S3·E18 Core

Episode 56 - HaSeul

Jan 11, 2017 · 1 min

Filming for The Carol has begun and the girls are shopping around London. The director buys the girls new sneakers.

S3·E19 Mytharc

Episode 57 - HaSeul

Jan 12, 2017 · 1 min

HeeJin, HyunJin and HaSeul are doing a photoshoot around London and are very cold but HaSeul is happy that she has a hot pack which gives her positive energy.

S3·E20 Mytharc

Episode 58 - HaSeul

Jan 14, 2017 · 1 min

The three girls want to go sightseeing around London, HyunJin spots some bread in a store. The girls get ready to go home to Korea as they’ve finished the filming they needed to do

Advertisement