 It sold more than 1.5 million copies in East and Southeast Asia.The literal translation of the Chinese title "曖昧" suggests that a man and woman are involved romantically but the status or nature of their relationship has not been clarified to each other or to others, and therefore in an ambiguous state.The album contains ten tracks, two of which are featured in Taiwanese drama, "Devil Beside You" (), as well as the Mandarin version of "True Blue", the theme song for "Astro Boy".