When I see you my heart shakes
I run towards you without having the time to breathe
Once our eyes met
As if everything has stopped, it's full of you

As I go step by step
I'll become your shadow and protect you
It's blinding my eyes at this moment
To me, you're only like a dream

In my empty heart, I fill it with your existence
So only yourself can surely come in
I'll only open my doors for you
I can't describe this feeling with any sort of word
To a point it's unimaginable, feels good

Your beautiful smile
Strangely it draws me in
I can't rеject
Like fate, it buriеs inside

Open up, open up, open up
The heart of the person who's expanding inside my heart
Open up, open up, open up
Fill me in with the color of you
Yeah yeah yeah yeah yeah, on your fingertips
Yeah yeah yeah yeah yeah, I'm there
Open up, open up, open up
Once again, my heart is only for you today
I wanna know

Today once more
I don't know what to do about my burning heart
Is it an illusion, maybe a dream, I'm scared
Nobody would know, make me crazy now
Even if I say it a thousand times, you won't know how I feel

Due to the sweetness in your gestures and expressions
I melt and breathe newly
You water my dry heart with love
You help me breathe

With your tickling breath
It makes me flutter all day
I can't reject
Like fate, it buries inside

Open up, open up, open up
The heart of the person who's expanding inside my heart
Open up, open up, open up
Fill me in with the color of you
Yeah yeah yeah yeah yeah, on your fingertips
Yeah yeah yeah yeah yeah, I'm there
Open up, open up, open up
Once again, my heart is only for you today

I've waited a long time
Shine my world like the moonlight
Let it be the sole light in the darkness
Like fate, it buries inside

Open up, open up, open up
The heart of the person who's expanding inside my heart
Open up, open up, open up
Fill me in with the color of you

Yeah yeah yeah yeah yeah, on your fingertips
Yeah yeah yeah yeah yeah, I'm there
Open up, open up, open up
Once again, my heart is only for you today