Yeonhee

Past Timeline
She was called one of the lords when she ended a war so she could sleep quietly and the people from her world thought she was saving them. She traveled to the the otherworld when she learns of the Dark Knights and their power. She makes a deal with Dellons of the Dark Knights even though she doesn't fully trust him. It's likely she has a youthful appearance due to her magic abilities and be able to travel through different worlds.

It is said that Spike saw her being mentioned in a book along Teo and that she disappeared after the first war of destruction.

Her past is later revealed, Yeonhee inherited her powerful and dangerous ability from her mother. Her father noticed it and was distressed about their ability. Her father sent a guard to kill the mother and Yeonhee and Yeonhee sadly witnessed the death of the mother. Yeonhee became emotionally disturbed and was unable to grow mentally. Yeonhee started to live in a fantasy world with peaceful dreams. It seems that the father was a selfish and cruel man.



Season 1
She seeks the Dark Knights to help her end a new war after the previous war had already ended, she's not exactly an enemy or their ally. She has very extreme views as she's willing to cause massive annihilation to end a war and go back to sleep peacefully.

Season 2
She first appears in episode 12 where she's watching Elysia's revolution take place before her crowning as queen. She is then seen talking to Mercure and it seems she is his is a superior but Mercure doesn't respect Yeonhee that much, he has more respect for Platin. Yeonhee and Night Crows have a hostile relationship as Teo tries to stop her from causing the war with the Dark Knights.

Orly doesn't like Yeonhee and doesn't want her to get in the way of the Night Crows's plans. Yeonhee seems to have met Orly and Teo in the past.

She appears in the ending of chapter 40 where she attacks Rudy and the seven knights. She orders Mercure to return and stop the fighting, her attacks are so powerful that none of the knights could stop her.

Season 3
She appears in episode 37 where she is having a dream about her past and her parents. The dream becomes a nightmare and she becomes terrified. Before getting stuck in the nightmare, she's able to overcome it by accepting the power of destruction and thus awakening. Dellons appears and comes to greet the now awakened Yeonhee. Yeonhee becomes interested in Dellons's past but Dellons tell her not to care about his past.Dellons relived the death of Claudia for many years, similar to an endless but realistic nightmare like Yeonhee experienced. Yeonhee appears in The Land of the Dead (map 14) and meets Orly and asks if she can beat her. Orly and Yoenhee attack each other and severely wounds Orly but Orly is later confirmed to be alive. It is unknown if Yeonhee decided not to kill her at the very end or Orly managed to surive due to her abilities.

She appears along the Dark Knights and Rudy, ready to send the collected fragments of destruction to Tellus and revive the collapsed world. However, Dellons uses the fragments for his own desires and thus Tellus is not able to be recreated.

Season 4
She appears in Judas's story in season 4. Judas plans to use Yeonhee for his mission to bring chaos into Gaia world as revenge against Elena who sealed him away in the abyss with her chimera. It is also revealed that Yeonhee may be a shaman just like Karin, and thus Judas needs her as a vessel like Dellons needed Karin.



Trivia

 * She was the first hero to receive a Theme costume (based on Alice in Wonderland) followed by Thrud and then skuld. In Japan her theme costume is actually an event hero called Ecila. Ecila later became an actual hero in the Korean storyline.
 * A silhouette of awakened Yeonhee was teased prior to her awaken release in Korea and was renamed Ethella in english.
 * She was the last special hero to awaken in the Korea server but the first to myth awaken.
 * She's the fourth strongest special hero in the story just in her awakened state. Now that she is myth awakened, Yeonhee is likely the strongest or possibly tied with Mist.
 * Myth awakened yeonhee's skills were quickly changed after players complained in Korea server.

Season 2

 * Dellons: "End it quickly."
 * Branze & Bransel: Bothersome
 * Orly: "You're still hanging out with Teo?"
 * Teo: "I never knew you actually accepted it."

Season 3

 * Bai Jiao: "What's your game?!"
 * Orly: "You're no match for me"
 * Dellons: "What happened in the past?"

Season 4

 * Dark Knights:"This is the end of you".
 * Dellons:"Only death awaits once I find you".
 * Judas: "What do you want?"