The TV series that sings this sentence of my smug smile is

(The ending song of TV series "Heroes and Teenagers" ...

Singer: Li Lifen's album: I can't put it down.

smirk

Singing/Music: Li Lifen

Life is a play.

Why care too much about gratitude and resentment?

Fame and fortune. What is this?

Life does not bring, death does not bring.

You never know the joys and sorrows of the world.

There is no chance to meet again in this life.

What is love and hate?

Things will work out when you reach the bridge.

Swing your sleeves and never look back.

It's time to drink and have fun.

That daughter is very good.

Happiness is hard to find. I walked all the streets.

I smiled smugly.

A smug smile.

The world of laughter is not old.

I smiled smugly.

A smug smile.

Seek a happy life.

I smiled smugly.

A smug smile.

Treat wine as a pure mirror.

I smiled smugly.

A smug smile.

Seek a happy life.

Life is a play.

Why care too much about gratitude and resentment?

Fame and fortune. What is this?

Life does not bring, death does not bring.

You never know the joys and sorrows of the world.

There is no chance to meet again in this life.

What is love and hate?

Things will work out when you reach the bridge.

Swing your sleeves and never look back.

It's time to drink and have fun.

That daughter is very good.

Happiness is hard to find. I walked all the streets.

I smiled smugly.

A smug smile.

The world of laughter is not old.

I smiled smugly.

A smug smile.

Seek a happy life.

I smiled smugly.

A smug smile.

Treat wine as a pure mirror.

I smiled smugly.

A smug smile.

Seek a happy life.