<Amami Kokoro's first bondage lesbian challenge! - ! - > Kokoro, a schoolgirl, lost her mother to illness a year ago and lived with her father, but her father leaves his mistress Ikumi and Kokoro at home and goes off to work alone in the countryside. - One day, Kokoro is betrayed by the man she loved and breaks down in tears. - In order to fill the heart of a sad girl... - The method Ikumi took to heal her emotional wounds...was an unexpected bondage SM training... - S and M between women... A chaotic bondage lesbian where pleasure and sadness are mixed!