Anko and Ko are tasked with investigating a mysterious religious cult known as "Paradise" after Amu Miyamoto, a member of the idol group Wednesday is Sunday, seeks their help. Her bandmate, Mei, has fallen under the sect’s influence. The cult’s enigmatic leader seems eerily ageless and exudes a radiant, almost vampiric allure. Their journey takes them deep into an isolated countryside where the cult resides, but their arrival is met with cold suspicion and open hostility. Tensions mount, secrets unravel, and the chase for the truth begins…