Edan Lui Cheuk-on (Chinese: 呂爵安), better known by his mononym, Edan, is a Hong Kong singer, presenter, actor, and a member of the Hong Kong boy group MIRROR. Edan Lui Cheuk-on (Chinese: 呂爵安), better known by his mononym, Edan, is a Hong Kong singer, presenter, actor, and a member of the Hong Kong boy group MIRROR.