Learn the basic chords of 己龍 - アナザーサイド chords, with this master sequence: Gm, D, Gm, Eb, D, Eb, F and Dm. I suggest starting at a calm pace of 90 BPM, and as you gain confidence, approach the song's BPM of 180. Given the song's key of Bb Major, adjust the capo to align with your vocal range and chord preference.