Omakase♪Guardian (おまかせ♪ガーディアン; Leaving it to Me♪Guardian) is the first single released by Guardians 4. The song was used as the third opening theme for Shugo Chara! Doki. It was released on May 27th, 2009 on the Pony Canyon label in two editions: Limited with a DVD (PCCA-0291) and Regular (PCCA-70244). The Single V was released on June 10, 2009 with the catalogue code PCBP-51933. It charted at 18 on the Oricon weekly charts and sold a total of 10,563 copies. The single V charted at 8 on the Oricon weekly charts and sold 2,996 copies.