Yukari Sekiya: Born in Osaka Prefecture. A musician with a unique performance style that makes use of undulations and pauses, she creates vivid, original songs with a sense of song. She has performed with performers and artists from Japan and abroad, and has launched her solo project "Out of the Window," focusing on seamlessly connecting and deepening improvisation (abstract) and composition (concrete). In 2025, she released the duo album "DUETS Till Now, From Here." She also launched "Umishima Records," where she produces merchandise with a particular focus.