Sagisomeol

On May 30, 2025, Sagisomeol debuted as a vocalist in the indie band GILCHI with their digital single "When Rainbows Meet". On July 31, he announced the release of his solo debut digital single "Bud". On September 23, he was introduced as a contestant on the Mnet's band survival show STEAL HEART CLUB.

On September 26, Sagisomeol announced the release of his second digital single, "Echoes". On December 9, he was eliminated from the show STEAL HEART CLUB in episode 8. On February 17, 2026, he announced that he would release his third digital single "Dreaming of Forever" on February 27.