This aunty really can sing. It’s not only the melody, the lyrics strikes my heart as well. To those who deem themselves as losers in relationships, don’t give up, don’t feel depressed.
It’s just not so easy. The lyrics says that, and you know what? Well said! 
Not so Easy by Tiger Huang (黄小琥) Piano Sheet Preview
Some information about this piano sheet:
1) It’s in original key, i.e. Gb Major
2) Lyrics and chords included
3) It’s a 6/8 beat, try to produce the groove on your left hand.
Have fun. This is really a nice song, don’t spoil it ya.
Download link for Huang Xiao Hu’s Not so easy (没那么简单) complete piano sheet.