12Itoshisugite (Duet With Tiara) [feat. Tiara]
3Kimini Ienakatta Omoi (Duet With May J.) [feat. May J.]
45Time After Time Duet With Nokko [feat. Nokko]
6Kanawanai Koidemo... (Duet With Yumi Shizukusa) [feat. Yumi Shizukusa]
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