Chosen as the successor to Bad Ranger, Bad Blue (Aoya Sanno-in) was raised as a noble lady, proud and disciplined, with a gentle demeanor and impeccable manners, embodying an elite personality who demands perfection from herself. She joins as a new member replacing the vacant position in Bad Ranger, quickly assuming a central role and rising in influence. Meanwhile, the dismissed Bad Green (Kukichi Morino) firmly believes in his own superiority, harboring intense jealousy and a deeply insecure nature. Watching the new Blue take center stage under high expectations ignites a fierce envy within him, eventually twisting into carnal desire for her as a woman. Driven by these twin emotions—jealousy and lust—he begins plotting revenge, pulling the story into darker and more complex territory.