This song by Remioromen is in G.
Part 1 is the Intro.
These are the “cheat” chords I played…
Part 1: G - C (x2)
Part 2a: G - C/G - G - C/G - D/E - Em7 - D/E - Em7
Part 2b: C - Am7 - D - G
Part 3a: Em - G - C - D - D/C
Part 3b: Bm7 - Em7 - Am7 - G/B - C - D - D/C - Bm7 - D
Part 4a: C - D - Em7 - D - C - D - Em7 - Bm7
Part 4b: C - D - Em7 - Bm 7 - Am7 - D - G
