I seek / Daylight

 is the 49th single by ARASHI as well as their eighth double A-side single since Calling / Breathless. It and sold about 737,951 in the first week and topped the Oricon Weekly Single Ranking.

The song "I seek" was featured as the theme song for the drama The Most Difficult Romance starring Ohno Satoshi on NTV, while the song "Daylight" was featured as the theme song for the drama 99.9 Criminal Lawyer starring Matsumoto Jun on TBS.

Tracklist
Regular Edition=

CD
Limited Edition 1=
 * 1) I seek
 * 2) Daylight
 * 3) Tadaima (ただいま I'm Home)
 * 4) supersonic
 * 5) I seek [original karaoke]
 * 6) Daylight [original karaoke]
 * 7) Tadaima [original karaoke]
 * 8) supersonic [original karaoke]

CD

 * 1) I seek
 * 2) Daylight

DVD
Limited Edition 2=
 * 1) "I seek" Video Clip & Making

CD

 * 1) Daylight
 * 2) I seek

DVD

 * 1) "Daylight" Video Clip & Making