Juun (Hearts2Hearts) Kim Ju-eun

Who is Juun (Hearts2Hearts)?

Juun (주은) is a South Korean singer and rapper under SM Entertainment who serves as a member of the eight-member girl group Hearts2Hearts. Born Kim Ju-eun (김주은) on December 3, 2008, in Ilsan, Goyang, Gyeonggi-do, she holds the position of main dancer and rapper within the group, coupled with her role as the group's leader.

Hearts2Hearts made their debut on February 24, 2025, with their first single album "The Chase," which featured the title track of the same name as well as the B-side "Butterflies". Juun was officially revealed as a member of the group on February 3, 2025, through the group's debut trailer film. Prior to her debut, she completed a training period of 4-5 years at SM Entertainment.

Standing at 166 cm tall with blood type A, Juun was raised in Ocheon-ri, Majang-myeon, Icheon, Gyeonggi-do, after being born in Ilsan. Her family consists of her parents and an older brother born in 2006, with the family described as having a military background. Her representative emoji is the purple alien 👾, reflecting her affinity for alien-themed symbols.

Juun's MBTI type has been recorded as ISFP, though variations including ISFJ, ISTJ, and INTJ have been documented at different points. Her zodiac sign is Sagittarius, and she was born in the Year of the Rat according to the Chinese zodiac.

Juun's early life and path to SM Entertainment

Juun's childhood and family background

Kim Ju-eun grew up in Ocheon-ri, Majang-myeon, Icheon, Gyeonggi-do, following her birth in Ilsan. Her family includes her parents and an older brother born in 2006, with the household having military ties. She attended Seoul Kangsin Elementary School before transferring to Majang Elementary School, then enrolled at Majang Middle School but subsequently dropped out. Juun later passed both the middle school and high school equivalency exams.

Dance training and competition achievements

Juun began learning dance during elementary school, developing her skills across multiple dance academies throughout her education. Her interest in K-pop performance sparked after watching BoA perform 'ID; Peace B'. Her competitive dance achievements included:

2017: Championship at the Korean Dance Competition
2018: Special Award at the Korean Dance Competition
2019: Championship at the Korean Dance Competition

SM Entertainment casting and audition story

SM Entertainment discovered Juun through Instagram after casting directors viewed her dance videos on social media. At her first audition, she performed 'Holo' by Lee Hi. She subsequently auditioned in 2020 with choreography from Red Velvet's 'Psycho'. Following her acceptance, Juun completed a training period of 4-5 years before debuting with Hearts2Hearts.

Juun's positions and skills in Hearts2Hearts

Main dancer capabilities

Within Hearts2Hearts, Juun holds the position of main dancer alongside her roles as rapper and vocalist. Her dancing ability distinguishes her as the member who picks up new choreography the quickest. This rapid learning capacity stems from her ability to observe, map movements, and retain choreographic sequences with precision.

Juun actively creates original choreography, extending her dance expertise beyond performance execution. During her trainee period, she ranked first at a showcase where she received particular praise for both dance and rap performance. Her movement style combines powerful execution with precise timing, reflecting the technical demands of both hip-hop choreography and synchronized group formations.

Rapping and vocal abilities

As a main rapper, Juun brings a distinctive husky tone to Hearts2Hearts' rap sections. Her voice quality adds depth to tracks requiring lower registers or charismatic delivery. Although not all group songs feature extensive rap portions, Juun typically shares these segments with fellow members Jiwoo or Eina when they appear.

Her vocal contributions complement her primary roles through a calm, low-pitched timbre that provides tonal contrast within the group's harmonic structure. This vocal range allows her to contribute to layered harmonies while maintaining her specialized position as the group's rhythmic and dance anchor.

Juun's personality and interests

MBTI and personal traits

Juun's MBTI type registers as ISFP, though previous assessments recorded ISFJ, ISTJ, and INTJ at various points. Her personality manifests as quiet and gentle, with members describing her as a calming presence who observes before speaking. She characterizes herself as "grilled tofu," explaining that while she appears chic externally, she maintains a soft interior. Juun identifies as the "Super Cutie" within Hearts2Hearts, contrasting with her stage persona. Her nickname "Jamkuromi" (Sleepy Kuromi) references both her personality and her affinity for the Sanrio character Kuromi. Her personal motto centers on the belief that hard work never betrays.

Favorite things and hobbies

Juun favors navy blue, purple, and black as her preferred colors. Her beverage choice includes grapefruit honey black tea, while ice cream serves as her favorite snack. She enjoys watermelon among fruits. Studio Ghibli films hold particular appeal, alongside The Truman Show and The Greatest Showman. As a Harry Potter enthusiast, she identifies with Slytherin house. Her musical preferences include Red Velvet's "Psycho" and Girls' Generation's "Oh!". Dancing remains her primary hobby, especially choreography creation. Her essential accessories consist of hats and glasses.

Relationships with Hearts2Hearts members

As of December 2025, Juun shares dormitory space with Yuha, Ian, and Ye-on, rooming specifically with Ye-on. Previously, she lived with Carmen, Stella, and A-na, sharing a room with A-na. If given the opportunity to exchange roles with another member, she would select Jiwoo.

FAQs

What is Juun's real name? Juun's birth name is Kim Ju-eun (김주은), with her stage name derived directly from her given name.

When was Juun born? Juun was born on December 3, 2008, making her a Sagittarius under the Western zodiac and a Rat in the Chinese zodiac.

Does Juun have any pets? Her family owns a Toy Poodle named Haneul.

How did SM Entertainment discover Juun? SM Entertainment cast Juun through direct messages on Instagram after viewing her dance videos posted on the platform.

What is Juun's specialty beyond dancing? Her specialty involves imitating NPC (non-player character) behaviors, a skill she references through her nickname "2109".

Why did Juun choose the alien emoji as her representative symbol? She selected 👾 as her representative emoji due to her affection for alien-themed symbols and imagery.

How long was Juun a trainee before debuting? She completed a training period of 4-5 years at SM Entertainment prior to her debut with Hearts2Hearts.

What song did Juun perform at her first SM Entertainment audition? At her initial audition, she sang "Holo" by Lee Hi.