To learn Rimi Natsukawa - Shima Uta chords, focus on the sequence of these chords: Bbm, Fm, Gb, Ab, Db and Ab. I suggest starting at a calm pace of 73 BPM, and as you gain confidence, approach the song's BPM of 146. With the song's key of Db Minor, set your capo to fit your vocal range and chord choice.