Kyonyû shiikujutsu: Kankin.

Haruki, a female college student, is exposed to the curious eyes of customers in a cage in a bar. But in her daily life, she is enjoying her college life on campus. Does she have two selfs? Yasuo doesn't know which one is her true self. What's more, every night at the bar, a bidding war is held for the key to the cage. Today's winning bidder is a well-known critic in the daytime world. When Yasuo, who is forcibly raped, traces her memory...