E.aN (이안)

The available material on E.aN does not support a substantive narrative profile. The structured facts establish that Lee Gyu-hyun, known professionally as E.aN (이안), is the main vocalist of the K-pop group NCHIVE (엔카이브), born May 6, 2000. Beyond that role, the provided coverage contains no information about E.aN — the recent articles relate entirely to AKMU's Lee Su-hyun and are unconnected to E.aN's career.

With no sourced material on debut, discography, chart performance, or activities, a fuller profile cannot be responsibly constructed.