Open, my tightly shut heart, open
Warmer than any other heart
I want to enter his heart
Open, the heart I don’t want to lose, open
I’m gonna enter soon, that’s what I’ll do

Open, heart, so I can color your heart
With happiness and love
I’ll color your heart
Open heart, so my love can enter
Precious times, fun memories
I’ll give them to you as a gift
Hurry and open

Open, that sweet heart, open
I’ll enter without anyone noticing

Open, heart, so I can color your heart
With happiness and love
I’ll color your heart
Open heart, so my love can enter
Precious times, fun memories
I’ll give them to you as a gift
Hurry and open

You’re spinning around my head
Can’t fall asleep tonight
Just thinking about you makes me nervous
Tickling me, yeah
You’ve already entered me
I’m waiting for your heart on the outside
As if I forgot about the cold winter
I’m drunk with your spring scent
My heart flutters and pounds

A love I’ve waited for all my life
A person I want to give my all, it’s you
Open, heart, so we can rest together
Each minute is precious, each second is precious
Time for us to be together

Open, heart, so we can color each other
My feelings and love that I saved
I’ll only give to your heart
So hurry and open