Extremely sad. I’ve listened to it without knowing what it means, but actually reading the lyrics while listening made my heart wrentch. 

Lyrics, Translated

Somehow I understand now

The reason why you stop and look down

You can’t begin to talk about ‘breaking up’

Our shadow fell on the pavement

Are overlap on top of each other

Two feelings will leave now

You must have met a different love

Can’t find the words to keep you here beside me

Why goodbye

Why the end

But to say that that’s a lie

Our hands grow colder since we let go

We’ll become strangers

Why’d you cry after saying sorry

I might end up embracing you

As memories piled up

Before that change into pain

Here is the final smile, let us say goodbye…

I’ll be fine by myself

The first time I lie

In hope it will stop your tears

It’s really important

I dont want to say it exactly

It’ll bring up stranded emotion but…

I wish for your happiness more then anyone

Even though I pretend to be strongI want to tell you ‘thank you’

Even goodbye

Even regrets

It’s the proof of what we once were

So it seems with you

Our memories will continue to exist

I’ll try to forget

Try to put it off our chest

Season both chopped

Let’s look to the new future

Hurriedly you rush away, behind your back

With a final smile, I say goodbye…

Why goodbye

Why the end

But to say that that’s a lie

Our hands grow colder since we let go

We’ll become strangers

Why’d you cry after saying sorry

I might end up embracing you

As memories piled up

Before that change into pain

Here is the final smile, let us say goodbye …