替え歌も許容して下さるということで、英訳＋αで歌ってみました。
歌詞を尺に合わせることが非常に大変でした。

”忘れない" の部分を "I'll never forget." と言いたいという理由だけで始めました。

【歌詞】
Encouraged by my love for you, I set out on this way.
I just wanted to keep believing in this feeling.

In the passing time, I held a dream and breathed out white breath.
It's so much fun that I don't know if it's a dream or reality.

The world is always beautiful. Ah beautiful. Even if you are in sorrow.
Everything shines cuz you found me. I like the world where you are.

My words was already piled up like the snow that had fallen that beautiful day.
I'm happy just with you smiling sweetly next to me anyway. That is what makes me feel safe the most.

I've lived until now without looking back at the past, only at the future.
Looking back, the memories encourage me. I'll never forget.