Two years ago, during her time at ○ school, Nanaami experienced a humiliating incident on a bus that left deep emotional scars. At that time, her first experience awakened a masochistic side within her, and ever since, she has secretly desired to be caught in a similar situation again. Yet, day after day, she continues to wait desperately for a reunion with the molester who had tormented her, someone who until now could only toy with her. Deep within her heart, as she steps onto the bus once more, the memories of that day remain vividly etched.