So far no one had it entirely correct, while it's actually quite an easy song.

I already play it for a couple of years (it was the first song I ever learned to
play entirely) so let me share it with you.

Here's how I play it:

Intro
G|-----------------------------------------------------------
D|---------2-2-22--------------------------2-2-22------------
A|-4-4-442-------2-0-0-002-------2-4-4-442-------2-0-0-002---
E|-------------------------4-4-44--------------------------4-

Verse (start right after "Lain")
G|-------------------------------------
D|----------22222222-------------------
A|-44444444----------00000000----------
E|----------------------------44444444-

G|-------------------------------------------
D|----------22222222----------77----------66-
A|-44444444-------------44-77-------33-66----
E|-------------------55----------44----------

Chorus
G|-------------------------------------
D|----------22222222-------------------
A|-44444444----------00000000----------
E|----------------------------44444444-

G|------------rest-----------
D|----------2-rest-----------
A|-44444444---rest-4-4-442-0-
E|------------rest-----------

Verse x1
Chorus x1
Verse x1
Chorus x1

Bridge (start right after "PS")
G|-----------------------------rest------------------------------------
D|-----------------------------rest------------------------------------
A|-2222222222222222-44444444-4-rest------------------22222222----------
E|-----------------------------rest-0000000000000000----------22222222-

G|-----------------------------rest-----------------------------
D|-----------------------------rest-----------------------------
A|-2222222222222222-44444444-4-rest------------------22222222---
E|-----------------------------rest-0000000000000000----------2-

Intro x1

... as simple as that! Hope you have fun with it!