This is my first tab, be gentle.
It's a pretty straight-forward song with 2 chord progressions interchanging between the chorus and verse.

Intro:
D D

D      F#m        E                 A                              
Kogane iro shita kimi ha annani kirei datta
      E               F#m               D            E                               
Ano toki ni iou to shiteita kotoba ha boku ni todoiteita yo
D       F#m        E             A                                                   
Mamorenakatta nani hitotsu mamorenakatta
        E              F#m             D            E                                
Suna ni natte ochite yuku bokura ha tsuyoku ryoute wo nigitteita

D                    E
Hoshi kuzu wo chiribamete kaketa 
A                 F#m
chikyuu ha sakebi nagara kaketa
D               E
Kaze ga fuite suna ha mai agari 
A         F#m
uchuu he hashi wo kaketa
D          E
Tenkyuu no ue reido wo kaketa 
A                 F#m         D
bokura ha hitotsu no hikari ni 
    E      A
natte kaketa
 
D            F#m     E              A                                                  
Saigo no kioku ga ichiban tsuyoku nokoru you ni
     E              F#m                                                            
Waratte yo sou da sono mama de ite
  D           E                                                                   
Boku ha totemo shiawase datta

D                E             A                F#m              D                    
Bakuhatsu no shunkan ni kaketa bokura no karada ha moroku kaketa
               E        A        F#m             D                                   
Hankyuu tai ha hirameite uchi he mahou wo kaketa
                 E        A                  F#m         D    E      A                
Saigo ni kimi ga ii kaketa kotoba mo hitotsu no hikari ni natte kaketa

D     E       A       F#m                                                           
Ginga sekidou no ue de 
  D      E        A    F#m
bokura ha chikyuu wo nagameta
D     E       A       F#m                                                    
Ginga sekidou no ue de 
   D    E     A
te wo nigitteita.

来源：www.ultimate-guitar.com