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Season guide

LOONA TV: Season 4 – YeoJin

20 episodes Premiered Jan 17, 2017 Updated Sep 26, 2026
Previously on LOONA TV

Season 4 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 3.
  • ⚡ 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.
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Season 4 Episodes

Episode Guide

🛡️ SPOILER SHIELD

Season 4 Progress Shield

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

Season 4: 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
S4·E1 Mytharc

Episode 59 - YeoJin

Jan 17, 2017 · 1 min

YeoJin, the fourth member of Loona, is introduced, she explains that she is 15 years old and that the other members call her bean. HaSeul says she’s a little lentil bean and HyunJi

S4·E2 Core

Episode 60 - YeoJin

Jan 19, 2017 · 1 min

HeeJin, HyunJin, HaSeul and YeoJin get ready for a flight to Taiwan to take photos for YeoJin’s album, the girls reflect on the countries they’ve been to and HaSeul declares that I

S4·E3 Core

Episode 61 - YeoJin

Jan 20, 2017 · 1 min

The girls have arrived in Taiwan and want to go sightseeing but then fall asleep on the bus.

S4·E4 Core

Episode 62 - YeoJin

Jan 22, 2017 · 1 min

HaSeul tells the audience that YeoJin confessed this was her first trip overseas and that HaSeul is the oldest one in Loona (so far) so she feels like she must take care of her whi

S4·E5 Core

Episode 63 - YeoJin

Jan 24, 2017 · 1 min

A photoshoot with all the members has begun, HeeJin and HaSeul play with a stuffed bear.

S4·E6 Core

Episode 64 - YeoJin

Jan 25, 2017 · 1 min

It is windy in Taiwan but the photoshoot continues, HyunJin wants to do an air conditioner CF.

S4·E7 Core

Episode 65 - YeoJin

Jan 29, 2017 · 1 min

HeeJin and HyunJin are goofing off and doing a wooing dance.

S4·E8 Core

Episode 66 - YeoJin

Jan 30, 2017 · 1 min

HyunJin and HaSeul wonder what HeeJin is doing. HeeJin is posing for photographs and HyunJin tries to show off her acting skill to HaSeul.

S4·E9 Core

Episode 67 - YeoJin

Jan 31, 2017 · 1 min

All four girls are filming today and YeoJin spots a puppy which then hangs around the girls. HeeJin tries to sit with the dog but is rejected and it walks away multiple times.

S4·E10 Core

Episode 68 - YeoJin

Feb 1, 2017 · 1 min

The weather in Taiwan is much nicer today so HeeJin and HyunJin are happy.

S4·E11 Core

Episode 69 - YeoJin

Feb 3, 2017 · 1 min

YeoJin is working hard and HaSeul is teasing her as they swap location.

S4·E12 Core

Episode 70 - YeoJin

Feb 4, 2017 · 1 min

HyunJin is good at impersonating voices, she copies Spongebob, Patrick Star and Hima Nohara from Shin-Chan. She then copies HaSeul calling out to the seals in episode 48. HeeJin th

S4·E13 Core

Episode 71 - YeoJin

Feb 5, 2017 · 1 min

HeeJin, HyunJin, HaSeul and YeoJin are practicing Kiss Later and dance the choreography.

S4·E14 Core

Episode 72 - YeoJin

Feb 6, 2017 · 1 min

HeeJin and HyunJin want to act cute but YeoJin out-cutes them with her voice and a cute-war erupts. The four girls head off to lunch, HaSeul gives a speech about her delicious lunc

S4·E15 Core

Episode 73 - YeoJin

Feb 7, 2017 · 1 min

The four girls are going to have dinner and YeoJin is talking to HyunJin, but HyunJin tells her to be quiet. YeoJin tells HyunJin that she is being too hard on her and pretends to

S4·E16 Core

Episode 74 - YeoJin

Feb 8, 2017 · 1 min

The four girls have arrived for diner and they are playing a word chain game and YeoJin loses, the loser has to pretend to be cute to the director. YeoJin approaches the director a

S4·E17 Core

Episode 75 - YeoJin

Feb 10, 2017 · 1 min

It’s Christmas time and the girls are still filming, HaSeul says that she heard some fans are envious that they get to go abroad every month but HaSeul says it’s difficult because

S4·E18 Core

Episode 76 - YeoJin

Feb 15, 2017 · 1 min

Filming continues in Taiwan but HyunJin tells the audience that it’s the last day in Taiwan and shows the camera that there is a cat posing with HeeJin. It’s Christmas day but all

S4·E19 Mytharc

Episode 77 - YeoJin

Feb 16, 2017 · 1 min

It’s Christmas night and YeoJin is sleeping whilst HeeJin, HyunJin and HaSeul are browsing through markets. They decide to eat Taiwanese fried chicken and listen to Christmas carol

S4·E20 Mytharc

Episode 78 - YeoJin

Feb 17, 2017 · 1 min

HeeJin, HyunJin, HaSeul and YeoJin are preparing for their flight back to Korea, YeoJin tells the camera that she is twelve years old, HaSeul asks the camera how old she looks and

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