The Japanese below is a modified lyric to "Ichiban no Takaramono".
And it's actually the original version. Yui ver and Yui final ver are both Yui's rearrangements.
You taught me that, so I’m not scared anymore
You’ve got to let go of my hand that you gripped
Even if I’m alone, I’ll go on, even if it’s tough
I’ll definitely take along the dream I had with everyone
I’m glad to be with everyone, I’m glad to have been with everyone
But on the morning when I wake up, no one is there
Even if I look back, no one’s shadow is there anymore
Only the puddles shined
Living my life- It’s confronting my life
If I understand it, then after that, I only need the courage to step forward
I’ll go everywhere, that’s what I learned here
I’ll show you I’ll fulfill the dream known as happiness
Even if I’m separated from everyone, no matter how far apart we are
This me will live in a brand-new morning
Even if I’m alone, I’ll go on, even if I want to die
I can hear your voice, saying, “You mustn’t die”
Even if it’s tough, even if I’m trapped in the dark
Deep in my heart, a light has been lit
Cycling and flowing, the times change
I can’t recall what happened anymore
But if I try closing my eyes, there’s everyone’s laughter
Somehow that’s my most precious treasure now