S2IT

On August 22, 2025, it was announced that the girl group S2iT would be participating in a three-day guerilla busking event at COEX East Plaza in Seoul. On September 19, in an interview report, it was revealed that S2iT is formed by the agency Monster Brain and consists of members Yeonsoo, Yoonseon (Haru), Jiwoo (Sea), Hyobin and Seungbi. They had a scheduled debut showcase in December 2025 and were eventually set to debut in January 2026.

However, their debut did not materialize in January 2026 and so, it is presumed to have been postponed to a later date. On February 25, 2026, it was announced that the group would hold their debut showcase on March 12, 2026, and officially debut on March 14 with their first digital single "What I Want".