The black algae group, a violent crime group that succeeded in smuggling a large amount of fantasy mushroom powder. The Special Investigation Department, which was unable to prevent this smuggling at the border despite having received information from before, mobilized Section 3 called the Force Squad. Before illegal love drugs are circulated in the streets, they start to take action. However, Kana Suzaki, a special investigator who is investigating, is caught and tortured. Knowing this, her best friend Rena Souma quietly burns her flames of anger and begins her actions alone.
