Japanese Lyrics:
Omoi chigai wa sora no kanata
Sayonara dake no jinsei ka
Hon no sukoshi no mirai wa mieta noNi
Sayonara nanda

Mukashi sundeta chiisa na heya wa
Ima wa dareka ga sunden da
Kimi ni iwareta hidoi kotoba mo
Muda na ki ga [bad word] maichini mo

Ano toki [bad word] ireba, ano hi ni Modorereba
Ano koro no boku ni wa mou, Modorenai yo

Tatoeba [bad word] shiawase ga
daratto tsuzuita to [bad word] 
kitto [bad word] tane ga me wo [bad word] 
mou sayonara nanda

samui fuyu no hieta kan koohii to
niji iro no nagai mafuraa to
kobashiri de rojiura wo nukete
 [bad word] [bad word] 

tatoeba [bad word] shiawase ga
daratto tsuzuita to [bad word] 
kitto [bad word] tane ga me wo [bad word] 
mou sayonara nanda

nanda
nanda
nanda

sayonara, sore mo ii sa
doko ka de genki de yare yo
sayonara, boku mo doo ni ka [bad word] sa
sayonara, sou [bad word] yo

More lyrics: [bad word] /www [bad word] solanin_lyrics_asian_kung-fu_generation.html
All about Asian Kung-fu+Generation: [bad word] /www [bad word] music/Asian+Kung-fu+Generation