She is a Japanese voice actress and singer currently affiliated with Honey Rush. Before June 2006 (when she switched to なかせ ひな), she was credited as "REIKO" or "Hina Nakase (中瀬ひな)". She uses the names "沢野令果" and "沢野冷果" (both Reika Sawano) when voicing the all-ages re-releases of adult games.
