romaji:

Tada nagarete yuku fuukai 
nai no kanji ne kuna daite 
omoi kogare te yuku kimi no ne
ima wa kako ni okiwasureteta
koe wa todokanai... kage sae kieta

Tada nagarete yuku juokai
naze ni hito wa yuki ka no koto 
sotto hi naite hatete mi te mo 
ureshi kisamarete yuku chikau

Atenaku umae ochita 
sugu okuno sei no naka 
anata to deaeta yo 

Toboe ochita shizukure nitato wa [bad word] 
futae watenai kedo [bad word] yo 
sono kimi no egao ka kokoro soko ni 
kienai hodo wo tsuketa nara 
omoi de no naka... 

He [bad word] wa kimi no moto  [bad word] mi [bad word] neku [bad word] no
tobi tachi na asu [bad word] kai  [bad word] kiro kudake wazu koni
boku wo tsunagu kanji kimi somerareta
sekai wa kure...

english:

The scenery just flows on.
It [bad word] to the point that I feel nothing at all
It is you I long for, but now I've left you behind in the past
My voice won't reach you. Ah, even your shadow disappeared

The scene just flows on.
Why do people [bad word] and go?
Although I gently aim my hand to my chest,
I futilely engrave the time we have spent
Aimlessly, we were born.
Again and again in life,
I met you by fate
The drops spill over
On the way to eternity, an answer will [bad word] forth, but
If that transparent smile of yours
Joins with the flame which won't extinguish at the bottom of my heart
You'll be in my memory
U & I

Eternally I will sink down with you
The birds of the setting sun face tomorrow
Just those memories I loved tie me to you ever so slightly
You were dyed in gold. The world darkens.