Here are the lyrics romaji “Arigato.” de Kana Uemura
You can listen to music in the words.

16 ji no taiyou madoron da hikari ga
naran da kage o nobashi te iku
kudaranai koto waraitobashi nagara
minare ta machi o arui te iku

aa ima de ha tooku hanarebanare da kedo
konna fuu ni ae ba itsu datte
mukashi no futari ni modoru yo

itsu demo kimi ga soba ni i te kure ta shiawase
watashi no kimochi dare yori mo wakatte kureru
kotoba ja tsutae kire nai kedo itsumo arigatou

kimi ga nai tara doko ni itatte sugu ni
ton de ike tara ii no ni tte
shinken na me de hanasu watashi o mi te
yasashii kao de waratta yo ne

nee nani ga atte mo kawara nai futari de
i tai kara kimi ni furu itami
issho ni uketome sase te ne

itsu demo kimi ha kakegae no nai hito da kara
donna toki demo watashi ga mamotte miseru yo
kotoba ja umaku ie nai kedo honto arigatou

itsu demo kimi ga soba ni i te kure ta shiawase
watashi no kimochi dare yori mo wakatte kureru
korekara mo zutto kakegae no nai hito da kara
kotoba ja tsutae kire nai kedo honto arigatou

16The light that slumbering sun when
It will extend the shadow lined
While laughed silly thing
Walk the familiar town

I Oh distant get separated now
Even when you never see something like this
Back in the old days of two people

At any time happy that you were here for me to buckwheat
Me know my feelings than anyone
I can not be told 's words
Thank you as always

As soon as it comes to where When you cry you
I wish I go flying
Look at me to speak with a serious eye
It's laughed at the friendly face

Because hey I want to be two people that does not change no matter what
Pain that falls to you
Let me catch together

At any time because you're irreplaceable person
I Miseru guarded even when what
I do not say well 's words
Thank you really

At any time happy that you were here for me to buckwheat
Me know my feelings than anyone
Because irreplaceable person and always will be
I can not be told 's words
Thank you really