透明だった世界 (toumeidatta sekai)

What did we really lose that day
I've long forgotten
As the two of us gradually disappeared in the twilight
Yet we couldn't go back
Somewhere, a fragile heart that seems about to break
Hiding it with words of strength
Hiding it
Even if we can't say goodbye
Because we have a continuation
Even in a world without you, I'll keep running
Beyond the pain of the past
Beyond

The scent of broken glass shards, the summer wound in the grass
Hey, where are you now?
The ink-stained water has also become murky over time
Before I knew it, I had grown up too
The swaying water surface was reflecting
The light still shines brightly
Shining

Goodbye, waving hands that day
You must have changed since then
Still, you keep on living
Beyond many nights when you want to cry

What did we really lose that day

Even if we can't say goodbye
Because we have a continuation
I'll keep running in the world I create
Beyond the future I once saw
Beyond