Riina (리이나)

A vocalist in the South Korean group H1-KEY (하이키), Riina — born Lee Seung-hyun on February 21, 2001 — represents one part of a lineup that has built a following within the contemporary K-pop landscape. Beyond her role as a singer within the group, no further career detail is available in the current source material to responsibly develop into a fuller profile.

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Additional sourced material — debut timeline, discography, chart performance, awards — would allow this profile to be substantially expanded. As house style requires, length follows fact density, and padding with unverifiable claims is not an option.