Ai no Tame ni.

"Ai no Tame ni." was written, composed and produced by Tetsurō Oda, marking their first collaboration. Unlike her previous singles, which were all based on a darker, edgier concept, "Ai no Tame ni." is Ueto' first light-hearted, cheerful single. CDJournal described the song as a "fresh, juvenescent ska-pop track," while Barks complemented Oda for composing a song that fit the modern take of the drama on the original Ace o Nerae! manga perfectly. The B-side, "Arigato," was also produced by Oda, and written by Oda protégé Akira Nakazawa. The single also includes a 1980s-inspired remix of "Binetsu." == Chart performance ==

"Ai no Tame ni." debuted on the Oricon Daily Singles chart at number 7 on February 3, 2004 and climbed to number 4 on February 7, 2004. It peaked at number 6 on the Oricon Weekly Singles chart, with 31,006 copies sold in its first week. The single charted for fifteen weeks and has sold a total of 99,470 copies. == Track listing ==

== Charts, certifications and sales ==

Charts Certifications and sales == Release history ==