The DSA was hired by a mysterious woman to stop Asano from acquiring and using on Takizawa a black market medicine designed to cure Alzheimer’s disease. While trying to stop Asano, the DSA discover their client came back from the grave.

One day, Leo appears in front of Aiko and asks for shelter. He is being followed by a very powerful enemy. He decides he can’t put her life in danger so he seeks shelter with the Black Scissors. When Leo disappears, Aiko hires the DSA to look for him.

While this mission to deliver a suitcase seems simple, several men attack the DSA on their way to the rendezvous point. After a narrow escape, the DSA discover it contains a very powerful germ capable of causing a lot of damage to the population.

Mikura is meeting someone and leaves. Kurokawa has a job to do and Harada tags along. Their client, Taneri, believes his wife (Jennifer) is having an affair and hires the DSA to follow her.

Mikura and Sakura spend quality time with one another for the first time in two years. They catch up on old times and try to make up for lost time. Mikura suspects something is strange and eventually confronts Sakura about it.

When Harada runs into an old girlfriend, he acts cold toward her; Mikura and Kurokawa try to dig for clues about what happened between them.