The largest drug smuggling organization in the country, known as 'Ghost'. Its full extent is shrouded in mystery and it never reveals its tail. Frustrated, the Central Criminal Investigation Bureau had secretly commissioned the female-only secret organization 'Moon Red' to conduct illegal infiltration intelligence investigations in an attempt to open a breach. And so, Ray, a member of Moon Red, was sent under the alias of Shiomi Inaba to the trading company 'Crystal Arm', which is affiliated with Ghost.