My masochistic tendencies have been awakened... I have learned the pleasure of being tied up... One day after school, on my way home, I saw a suspicious couple, so I followed them. They entered an abandoned warehouse, and I witnessed their shocking bondage SM. From that day on, my body began to ache, and my interest in being tied up turned into desire. "Please tie me up tightly. I want you to leave marks of the rope on my body and on Kokoro."