The largest catastrophe in history strikes Ayaka Seto, the chief of the drug investigation section. She falls into the cunning trap of a smuggling organization and is captured. Then, she is injected with a hateful, vicious aphrodisiac, and the parts that Ayaka, who is proud, wants to hide the most, her anus and secret lips, are targeted. Her sensitivity increases from shame and humiliation, an interaction occurs, and she repeats incredible orgasms many times. In the end, she becomes a pleasure slave of an extremely evil person and falls into a den of lust.