To start learning Aqours - 聖なる日の祈り chords, centre your learning around these elemetal chords sequence: Em, A, Dm, Cm, F, Gm, C, F and Bb. Set your pace at 77 BPM initially and then sync up with the song's BPM of 154. Adjust the capo based on your vocal range and chord preference, keeping the song's key of D Major in mind.