Lounge Sai is a boutique that began in 2019 to engage with works by both domestic and international brands and artists.

As an ongoing exploration of how to create a space that connects people and works beyond conventional boundaries, Lounge Sai currently operates without a physical store, instead hosting pop-up events in various locations on an irregular basis.

Embracing a broad definition of "fashion" as an experience that helps shape oneself comfortably, Lounge Sai curates works across diverse fields — clothing, fragrance, interior, music — without being limited by genre or the fame of the creator.

In 2022, the online store loungesai.com was launched.