There is a line in the lyrics, "The oath of youth, the mission of life, is in my heart ... I know I have grown up, I really have grown up". What is the title of this sentence?

I hear the sound of time.

Say I've grown up

I saw the world.

The embrace of the world

Suddenly it opened in front of me.

music

I feel the eyes of my parents.

My back is burning.

I think I ...

Someone's heart

Jump on my chest.

This road is extending.

The mountain is hovering.

The sky is rising.

I know I've grown up.

I really grew up.

music

Vows of youth

The mission of life

Beating in your heart

I know I've grown up.

I really grew up.

music

I feel the eyes of my parents.

My back is burning.

I think I ...

Someone's heart

Jump on my chest.

This road is extending.

The mountain is hovering.

The sky is rising.

I know I've grown up.

I really grew up.

music

Vows of youth

The mission of life

Beating in your heart

I know I've grown up.

I really grew up.

music

This road is extending.

The mountain is hovering.

The sky is rising.

I know I've grown up.

I really grew up.

music

Vows of youth

The mission of life

Beating in your heart

I know I've grown up.

I really grew up.

music

grow up to an adult

exceed