Hyuna (현아) is one of six major participants introduced in the ALIEN STAGE: Prologue. Not much is known about her, save for her initial introduction and appearance in Round Five. Her song, "All-in", reveals pieces of her past and what she's been up to since escaping and joining the rebellion. The song, "Wiege", is a duet sung between her and Luka, and it dives deeper into Luka's backstory as well as the aftermath of the Final Round.

She is the second oldest[1] known participant in Alien Stage, with the oldest being Luka at 30.

Hyuna is an overall bright person with quite a bit of confidence. She's rather touchy and playful with people she's familiar with, often pulling them into hugs and cracking plenty of jokes. Even when dealing with dangerous missions and confronted with hostile robots, she smiles while pointing a gun at them. Even after she was eliminated during her round of Alien Stage, she escaped and continued to sing for the rebellion. Hyuna's position as the leader of the rebellion shows her drive to protect and vast love for humanity, perhaps stemming from her inability to protect her brother Hyunwoo.

Despite all this, Hyuna has a more vulnerable side that appears when dealing with her past, particularly when thinking of Luka. She states Luka to be "her one weakness", because Hyuna values moving forward so much, but her conflicting emotions towards Luka and the things he's done to hurt her still chain her to her past, even if she appears to be someone quite undisturbed by her history. Her guilt got so bad she began to rely on drinking and smoking to numb the pain.[2]

She's quite selfless, as her first action upon escaping from captivity was to try and crawl back to Anakt Garden with only one leg in order to save the other kids held in there.[2] This selfless nature of hers would lead to her demise, as she sacrificed herself for Luka in the end, even when the one with the gun was a member of her own rebellion, and even though she resented him.

Hyuna is a tall, athletic woman with long brown hair, tan skin, and striking gray eyes. Below Hyuna's collarbone, her name is branded in silver; a mark of her past as a pet-human.

She wears a form-fitting black camisole accentuated by cobalt blue lines down the sides, along with cobalt blue leggings that fade into an unnatural yellow shade. Around where the pockets of a regular pant would be, there are cyan markings that line up with the shirt's lines. A prosthetic replaces her lower left leg.

In "All-in" she wears her signature outfit during her on-stage performance. Hyuna mostly wears a black tank top and brown cargo pants, rolling up the left pant sleeve. She also dons sunglasses and a glove on her right hand.

Past

Hyuna, Luka, and her brother Hyun Woo all knew each other during their time in Anakt Garden. It's implied that she was very close to both of them. However, Luka is seen to have had deeper feelings for Hyuna as he attempted to kiss her. The (attempted) kiss seemed to have distressed Hyuna.

While It's unknown what transpired between Hyun Woo and Luka, it's implied the two had a fight which resulted in Hyun Woo's death.

Later on, Hyuna loses her round during the 49th season of Alien Stage but escapes her death, losing her leg due to rubble that fell on her. Luckily, she's rescued by the human rebellion where she befriends Isaac, Dewey, and Jacob, the former leader. However, after she joins, Jacob is kidnapped and tortured by the aliens and later passes away from his injuries following his rescue.

Present

Hyuna, now the leader of the rebellion, rescues Mizi from Alien Stage, and along with Isaac and Dewey, they go on a mission to presumably rescue the remaining participants, Till and Ivan. During this break-in, she gets injured, taking a shot to her right side.

During the Final Round, we see Hyuna and the other rebels break into a security room but Mizi leaves to attempt to save Till. After failing to convince her, Hyuna lets her go and starts to download something onto her computer. At the end of the round, Hyuna arrives on stage and reunites with a surprised Luka.

"I resented you so. I had to keep moving forward in every moment... But you were always my one and only weakness. That's why I resented you so. Luka, live with love. Embrace the pain, the frailty and the moments so unbearably shameful. Forgive yourself… Again and again, endlessly. Because everything… begins from there.”

—Hyuna, to Luka, Wiege

Luka, overwhelmed with emotions, starts to run towards her and embrace her despite having a gun pointed at him. Hyuna decides to take the bullet for him, seemingly reciprocating his embrace but quickly turning him around with her so that the bullet hits her instead. She spends her final moments in Luka's embrace, telling him to live with love and to embrace the struggles he had endured. She tells him to forgive himself endlessly, after which she tightens her embrace on him before possibly dying in his arms.