To learn Sekai No Owari - Diary chords, begin by getting comfortable with these sequence: E, B, D#, G#m, E, F#, G#, C#m, G, F#, G#m, D#m and E. For best results, commence at 40 BPM and progress to the song's BPM of 80. Considering your vocal pitch and chord choices, adjust the capo in accordance with the key: B Major.