The ninth EP from P1Harmony sold half a million copies in the first week, a record for the six-member group, agency FNC Entertainment announced Thursday. “Unique” also surpassed the first-week sales of its previous album, eighth EP “Duh!,” in just one day. "Duh!" entered the Billboard 200 at No. 23, and the group's first English-language album “Ex,” released in September last year, claimed the No. 9 spot on the main albums chart. The new album portrays the bandmates as returning to their superhe