The English translation is at the bottom.

朝目覚めたら すぐ隣にいた

大きな瞳で you looked into my soul

ここにいるはずないのに

まるで天から 舞い降りたよう

君は新しい 家族になった

かわいい仕草に

優しい温もり

君といるだけで I felt complete

だけど——

君はあの日 走り出したね

小さな足で 風を切って

知らずすれ違った運命

I’m sorry, I lost you in the wind

ごめんね さよなら 届かない

あいちゃん——

君が残した ひとつの命

小さな温もり still in my hands

私はこの子に ジジと名付けた

黒い毛並みに 君を見た

君がいない日も

そばにいてくれた

きっと お母さんも

watching over us with love

君はずっと 外が怖いね？

逝ってしまった 母がいたから

無理に連れ出しはしないよ

It’s okay, I’ll stay by your side

ずっと一緒に居て

時は流れ 君も年をとった

この世界の広さも 美しさも

you never got to see the sky

知らないまま 旅立つの？

あぁ—— 君は突然 甘えてきたね

One last time, you held me close

なぜだろう きっと わかっていた

次の日 そっと丸くなって

冷たいまま 眠ってた

泣いたよ 君がくれた時間

辛い日も I was never alone

心に残る 君の記憶

forever etched in my heart

ずっと ずっと 消えないよ

Thank you, my love

ありがとう

--------------------------------------------------------------------

When I woke up in the morning, you were right beside me

With big eyes, you looked into my soul

You weren’t supposed to be here,

Yet it felt like you descended from the heavens.

You became a new part of our family.

Your adorable gestures,

Your gentle warmth,

Just being with you, I felt complete.

But—

That day, you ran away, didn’t you?

With your tiny feet, you cut through the wind.

Without realizing it, fate passed us by.

I’m sorry, I lost you in the wind.

I’m sorry… good-bye… it won’t reach you.

Ai-chan—

The one life you left behind,

A tiny warmth still in my hands.

I named this little one “Jiji.”

In its black fur, I saw you.

Even on the days you weren’t here,

You stayed by my side.

Surely, your mother

Was watching over us with love.

You’ve always been afraid of the outside world, haven’t you?

Because your late mother was taken from you.

I won’t force you to go outside.

It’s okay, I’ll stay by your side.

Let’s always be together.

Time passed, and you grew older.

You never got to see the vastness,

The beauty of this world.

Will you leave without knowing the sky?

Ah—suddenly, you snuggled up to me.

One last time, you held me close.

I wonder why—it felt like you understood.

The next day, you quietly curled up

And fell asleep, never to wake up.

I cried, for the time you gave me.

Even on hard days, I was never alone.

The memories of you remain in my heart,

Forever etched in my soul.

They’ll never fade away.

Thank you, my love.

Thank you.