Secret Agent Mirai received information that a certain pharmaceutical company is conducting illegal human experiments. She headed to the company to investigate on her own but was captured. In the laboratory, there were numerous sinister-looking machines. What will become of her...!?

Secret Agent Mirai receives information that a certain pharmaceutical company is conducting illegal human experiments. She heads to the company to do an undercover investigation on her own, but she is caught off-guard in their underground laboratory and captured. In the underground laboratory, machine training is carried out by special machines, and Agent Mirai becomes a new test subject.