In the story-telling episode of ipartment in the second season, Tang Xiaoyou introduced the song title "The First of the Four Butterflies" when he appeared. Sounds like Anita Mui.

It rings in the dead of night.

A faint saxophone

Lift up the sadness in my heart.

When you hear it in the dead of night

This faint saxophone

I miss you at a loss in the dark midnight.

This night, the stars and the moon are misty.

I hope to see your face again.

I miss you so much tonight.

I feel that I can't manipulate it in my heart.

I want to face you one day.