<page_title> Kioku (Misia song) </page_title> <section_title> Release history </section_title> <table> <cell> May 25, 2011 <col_header> Date </col_header> <row_header> Japan </row_header> </cell> <cell> Ariola Japan <col_header> Label </col_header> <row_header> Japan </row_header> </cell> </table>
Kioku was released as the album's lead single by Ariola Japan on May 25, 2011.