Choi Jungeun

Has a charming duality—radiates intense charisma on stage, but is cute and quirky off stage.

Shows extraordinary affection for fans. During a break in an I-LAND 2 : N/a M Countdown performance, she brightly greeted fans and then cutely patted her cheeks with both hands to re-immerse herself in the performance.

Possesses a bright, cheerful personality and great creative sense. Is frequently filmed gathering with others to make fun short-form content.

Is very playful and often caught pulling pranks on both older and younger members alike.

Speaks with crisp, clean pronunciation while maintaining a natural, cute charm (aegyo).

Possesses outstanding leadership rooted in a practical and thoughtful nature, consistently earning the vote of fellow contestants whenever leaders were chosen on I-LAND 2 : N/a.

Is a true hard worker, reportedly studying her own fancams over 100 times a day to identify and fix areas for improvement.

Has a wide circle of friends and is the type to consistently stay in touch over a long period.

She has a perfectionist streak, once stating, "My own expectations were a heavy load to deal with." She often pushed herself to "kill it" from the very first second of a performance.

Despite being one of the younger members, she often took responsibility for the group's success, helping other contestants with vocal tips and stepping into difficult roles (like taking high notes) when the team needed it.

he is often called a "fireball" or "all-rounder" because of her fierce charisma, sharp dance lines, and powerful vocals.

Fans describe her as much more introverted and shy. This is supported by her ISFJ (or sometimes cited as ISTJ) MBTI type, which points to a personality that is quiet, observant, and hardworking.

Jungeun’s journey was one of the most difficult on the show. She faced "evil editing" and a widely discussed "rift" with fellow member Jiyoon, but she remained focused on her performance.

Even when her scores dropped or she faced harsh criticism from producers, she was noted for her persistence.

Members have described her as a "team player" who looks after others behind the scenes, reflecting her "S" (Sensing) and "J" (Judging) traits—someone who values order and takes care of practical needs for her friends.

Fans find her "mildly introverted" personality endearing. While she might not be the primary spokesperson for the group (a role often filled by Jeemin), her quiet confidence and "ace" status have earned her a dedicated international following who see her as a "hidden gem" of the 5th generation.

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Formed through the 2024 survival show I-LAND 2: N/a, izna is a globally rising 5th-generation girl group under WakeOne and produced by hitmaker Teddy Park. As of May 2026, the group consists of six members following the departure of Yoon Jiyoon in August 2025: Mai, the group's visual center; Bang Jeemin, a versatile and charismatic natural center; Koko, the powerful main dancer known for her impressive height and stage presence; Ryu Sarang, an all-rounder praised for her clean dance lines and stable vocals; Choi Jungeun, the group’s powerhouse main vocalist and 1st-place finisher; and Jeong Saebi, the energetic and expressive "maknae." Since their debut on November 25, 2024, with the EP N/a, izna has solidified their identity with hit tracks like "Mamma Mia" and "Beep," earning significant industry recognition including the "Best Performance Award" at the 2026 Golden Disc Awards and the "Best Group" title at the 2026 D Awards.