The drug "Slash", disseminated by a mysterious figure who calls themselves "JOKER", involves Houou Academy High School "Seventh Heaven" and Shishidou High School "Route Seven" in the vortex of the affair. As both teams continue their investigation to determine the origin of "Slash", Momotarou and Akane get kidnapped. In order to rescue their friends they decide to cooperate, but, as they gather information, the unbelievable fact that there is a spy in their group comes to light. The party is swallowed much further into the vortex of darkness...
Student Council General Affairs. A bright mood maker. Although he's attending Houou for some reasons, he's actually a world-wise man. He's hiding his part-time job and, in order to save transportation expenses, often moves around with his skateboard.
Student Council Moderator. One of the best students in his grade, ranked first in the nationwide mock exam. His family is associated with the police force, but he doesn't have a good relationship with his father.
Head of the team Route Seven. Likes music and bikes. Ever since Goushi was saved by the legendary gang, he decided that as long as he exists, he will protect Shibuya. He lost his parents and older brother, leaving him with no family.