To jam and learn Toshiki - 君がいない世界 chords, your primary focus should be mastering these chords sequence: F, G, C, F, G, Am, Em, F and C. Ease into the song by practicing at 50 BPM before reaching the track's full tempo of 102 BPM. Set the capo considering your vocal range and favored chords, aligned with the key: C Major.