[Cover + Scores] The girl who can't break up, the guy who can't leave - By LeeSsang

First chord : Gb7 (Gb + Bb + Db + F)

 Second chord : Ab7/Gb  (Ab + C + Eb + Gb)

Third chord : fm7 (F + Ab + C + Eb) 

 Fourth chord : Bbm (Bb + Db + F)

First chord : Right hand in octave 

Second chord : Right hand in octave

Here we provide key in C major.