H1-KEY Talks All Things “Deeper” and Delves Into the H1-KEYnote Project

South Korean girl group H1-KEY debuted in January 2022 with their first ever single “ATHLETIC GIRL.” Managed under the Grandline Group, they consist of members: SEOI, RIINA, HWISEO, and YEL, who in January 2024 began the H1-KEYnote project. Sharing H1-KEY's untold stories and messages with their fans, M1-KEY, the K-Pop quartet aims to send comfort and sentiment to listeners through the power of their music -- with no restrictions to their expressions. So far, they have released two digital singles: “Thinkin’ About You” and “Deeper.”