My girlfriend Luna suddenly left me. One day, some time later, I received a call from Yuji, the man who had stolen Luna away. He told me that he would let me have sex with Luna if I paid him money, and I accepted, unable to suppress my desire to meet him. However, Luna had completely changed when she was there... Rather than scolding me while we were having sex, Luna whispered words of love to Yuji while looking into his eyes. But I still couldn't forget Luna, and I continued to give money to the man I hated...