The awaited kdrama starring Nam Joo Hyuk and Jung Yu mi is as confusing as it can get. I've done my best to explain it.
1st episode is extremely confusing! You'll have no idea what is going on.
Eun young is the main protagonist who can see dead people and jellyfish like creatures.
The first scene is a flashback with with Eun young sitting in front of a teacher who's asking her to explain a painting.
Eun young is silent and doesn't say anything. Besides her sits her mother who holds her hand and when lets it go we see jelly slimy thing in eun youngs hand.
The narrator (older eun young) explains that every living being create such jelly but before they can hurt anyone they're crushed to jelly.
Soon, eun young goes outside and her dad hugs her and starts to sob while her mother is standing far. Then theres a creepy scene where we see how her mother gets turned to jelly and dissolves.(she could see her dead mother).
Flash forward to few years later. Eun young is all grown up, shes a nurse at a school.
The starts off with few guys setting up a candles for the guy who's bullying them into doing it. He's about to propose to a girl who everyone calls jellyfish ( real name aa raa).
She's up on the terrace with a guy and she tells him she'll be down so so he leaves. Another guy Seung won wants to confess to a raa and he's rushing to find her when suddenly something happens to his neck.
He goes to a school nurse and she removes a jelly thats shaped in a heart. She tells him to go to the hospital to get it checked but he refuses and rushes to find a raa. Eun young goes to his homeroom teacher In pyo(naam joon hyuk)
Hes the grandson of the person who started the school. Hes a homeroom teacher who has a problem with one of his leg. When eun young meets him she notices he has some sort of aura around him.
Later they both end up in the basement (which we see in a scene that no one is allowed in)
In the basement there are many such jellies and only Eun young can see them and shes using her sword to kill them while In pyo thinks shes crazy.
They discover some sort of altar. Eun young says she doesn't have time for this and rushes to find Seung gwom. In pyo is fascinated by the altar and he reads the inscription on it.
It says that this was a pond where young lovers came when they lost their love and drowned themselves. There were people who dumped bodies in there of people they murdered so that it would look like suicide.
To make matters worse fish and toads and lizards that feed on these corpses became bigger. Thats why the pond was filled with sand and dust.
To kill these beasts you need to cut off their heads
Above the basement students have become zombie like and are trying to jump off the rooftop. (Seems like the only students who were possesed were the ones who lost their love).
Eun young goes up and tries to save them with her skills. Suddenly the ground below has opened and theres a huge monster (that looks like a frog). Eun young shoots it with pills to kill it and it eventually dies.
She then holds hands with In pyo to transfer some of his energy to her.
Next episode we see two students trying to steal question papers.
Heo wan su(lucky)kang min u(ruckus). They're always together and eun young can see a bond always tied to their heads.
Eun young has a friend she made at a hospital she works at. Shes her best friend and someone who eun young sees as her mother.
We see Eun young telling her that Heo wan su and Kang min u were born with that jelly connection which is connected with both their heads.
She says its not right for friends to be tethered like that and thats shes seen one of the two end up dead before.
Eun Young's friend tells her to shave the heads as the jelly might've attached to the hair. Next day with a raas help (a ra tells ruckus to shave his head as he would look better. He listens to her because he has a crush on her).
The jelly connection remains even after he has shaved his head.
In pyo says tying ends of the hair might help. So he starts teaching eun young and araa how to make intricate knots.
Meanwhile lucky and ruckus are in the ping pong club and decide to sneak into a girls school and steal cushions. They do that and by mistake also steal a dead girls cushion.
Next day in a classroom all boys are crying. And when eun young enters she asks the rest to leave. She sees one girl crying too, turns out she the dead girl and she's holding her cushion.
She suddenly starts to grow bigger and bigger and eun young stabs her with her sword and the girl bursts into hearts. Everyone stops crying. Eun young takes the cushion and burns it.
Lucky and ruckus are on the rooftop smoking and a raa comes to call them and tells them the nurse wants to see them. When the go there.
Eun young hits them with her sword they faint and soon she and in pyo start typing their hair ends. The plan works and eun young is successful and untethered their heads.
Another teacher( Mackenzie who is from America) who works there also can see these jellies. Eun young realizes it and she confronts him.
He tells her if instead of killing them she sold them she would be rich. Eun young tells him to stop selling them and also stop trying to steal in pyos defensive jelly that protects him from bad ones. Hes says he won't stop and leaves.
While Eun young goes on searching Mackenzie's place and her friend Hwa su keeps on digging his past from the internet, In pyo goes to find out about the company that his grandfather told him to call every once in a while for disinfecting the basement.
Because of the supernatural plant she touched at Mackenzie's place she gets rashes on her face which she heals by taking energy from love locks
She goes with In pyo to his fathers library where eun young reads from a book which says "if you can can control the breathing hole then you can turn luck in your favor and control the nation"
Theres a new transfer student and she can too see few weird looking creatures and she eats them. Suddenly everyone at school has rash. She tells eun young that mites can be destroyed and she eats one in front of her.
She says mites are immigrating towards this school because the ground is not stable and asks if they did anything to the Apji stone(altar from episode 1).
She lives dies and relives her life there(shes not a normal human). She's a mites killer.
Later in the 6th episode Eun young and In pyo drop her off at her facility where she came from. When dropping her off In pyo asks her where she lived before the facility.
Hye min tells them that it was before the school was built. The villagers were very scared and worried that the school was built on this ground. She says thats theres a hole where air flows. She tells them there was a pond before and people kept going there and thats why it was closed. Theres a energy there which fuels with the laughter of children.(in the school the children every morning are made to do the laughing exercise).
In pyos grandfather wanted to channel that large energy. Thats why the villagers were worried about how he would control thr world.
To those who were strong the energy didn't have any effect but those who were weak the energy drew them in like the ones who jumped in the pond.
Hye-Min’s surgery is a success but the surgeons find out how strange it is that she hasn’t got a belly button.
In her stomach they find a strange creature with a Chinese scripture on it reading “Guje”. This means saving others in trouble. Eun-Young can’t actually see this as she’s lost her power.
In the finale we see that the heads of lucky and ruckus again are connected when they go to the basement.
We find out that the school wasfwas built forSfor Happiness the company and students would jump in the pool constantly and thats thats how they got the energy.
The jellies seem to be feeding on bad energy and there is nobody there to stop them.
Writing a letter of resignation, Eun-Young heads back to school as there is a huge flood of jelly that starts flushing through the rooms.
Eun-Young can’t see this because she's lost her powers.
In Pyo heads to the fishing site in the pictures featuring Ilgwant the company but finds it abandoned.
Ilgwang is not there but it turns out Safe Happiness are the ones involved in everything.
They’re they're the bad ones and Mackenzie and Ga young the other teacher are members of this group.
Ilgwang consists of the ladies Eun young knows from therapy sessions of her friend. Eun-Young goes totto and tells the leader she’s not going to fight for them anymore.
Eun-Young decides to destroy the school by opening up the Apji stone and letting the jellies flow out.
As they open up the stone, Eun-Young suddenly gets her powers back and sees all the jellies floating around. Everything starts shaking, she goes upstairs to get her sword.
The school shakes, leading to a massive jelly heart plunging down to the ground outside
Fast forward we see that the school seems healed now and the students back to full health.
Radi the student meets and speaks to Eun-Young in her office. She reveals that her Mum can see ghosts and asks for help. As Eun-Young smiles (very awkwardly), she realizes she is not alone in seeing jellies.
