Let's start jamming 大森靖子 - きゅるきゅる chords, familiarize yourself with these chords - Ab, Ab, Db, Ab, Bbm and Eb in sequence. I suggest starting at a calm pace of 42 BPM, and as you gain confidence, approach the song's BPM of 85. Tune your capo to accommodate your vocal range, referencing the song's key: Ab Major.