This song is originally sung by May Day五月天. Because it is a very beautiful song, there are many covers made on this song.
Many people thought this is a bitter love song but this song《知足》Contentment is not such a bitter love song. This is the kind of song that makes people linger in the remaining struggling hope.
Having contentment is a noble one because even after separation, you will give your blessing to the other half and wish her to be happy.
《知足》Cover By 倆人 Acoustic Too
source: 倆人 Acoustic Too