Four years have passed since the release of Ai Energy's narcotics investigator series starring Yui Hatano. This time, we go back to the first installment, depicting her encounter with the investigator who will later become her partner and the beginning of her entanglement with a drug organization. Due to her hot-blooded nature, she hates evil and tends to conduct solo investigations. However, the claws of evil were already creeping in･･･!
