Kim Eun Sung is a South Korean singer, dancer, and member of IDNTT (아이덴티티 / アイデンティティ) and one of its sub-units, ITSNOTOVER (잇츠낫오버; also stylized as ITSNOT5VER).

He first appeared on TV as a contestant on MNet's band survival show "Steal Heart Club", where he was eliminated on episode 5. He was already a trainee at Modhaus (모드하우스).

After the show, the agency selected him to be a part of their new 24-member boy group called IDNTT that was scheduled to debut in the second half of 2025. However, Modhaus opted to split the members into 3 separate sub-units and allow the fans to select and later rotate the members for each unit. Each member is assigned an id number, his being id21.

He made his debut in July 2026 as part of the sub-unit ITSNOTOVER with their first self-titled EP.

(Source: kisskh) Edit Biography