Breaking up with girlfriend, being comforted by best friend and ending

Break up with your girlfriend, get peace from your best friend and the ending. A guy discovered his girlfriend was having an affair, so he was very miserable and broke up with her. He found a group of close friends to relieve his sadness. After getting drunk he started paying attention to his friend Riho Fujimori, now he saw that she was beautiful and attractive. Seeing Riho Fujimori sleeping on the sofa, he started to approach and touch her body and then…