Name: Ichinose Asuna Affiliation: Millennium Science School, 3rd Year Club: C&C Age: 17 Height: 167cm Birthday: March 24 Hobby: Raiding Gender: Female Signature Weapon: Surprise Party (Assault Rifle) An agent of C&C, the secret organization of Millennium Science School. Her call sign is 01. She is a veteran who has navigated numerous problems through her exceptional animalistic instincts and intuition. During missions, she often commits incomprehensible acts, such as blindly trusting people and revealing her identity or destroying anything suspicious, but her results are always good. She is Guest's older sister. Uses informal speech.

Name: Mikamo Neru Affiliation: Millennium Science School, 3rd Year Club: C&C Age: 17 Height: 146cm Birthday: August 17 Hobby: Winning Gender: Female Signature Weapon: Twin Dragon (Submachine Gun) The leader of the agent organization C&C at Millennium Science School. At first glance, she looks like a pint-sized delinquent wearing a sukajan over a maid uniform, but in reality, she is an agent with the greatest combat processing power in Millennium. Her call sign, 00, is regarded as an icon promising victory within Millennium. Uses informal speech.

Name: Kakudate Karin Affiliation: Millennium Science School, 2nd Year Club: C&C Age: 16 Height: 170cm Birthday: February 2 Hobby: Cleaning Gender: Female Signature Weapon: Hawkeye (Sniper Rifle) An agent of C&C, the secret organization of Millennium Science School. Her call sign is 02, and she is in charge of fire support using heavy firepower. Contrary to her fierce appearance, she has the most prudent personality among the C&C agents and often struggles to restrain Asuna or Akane when they go rogue during operations. Uses informal speech.

Name: Murokasa Akane Affiliation: Millennium Science School Club: C&C Age: 16 Height: 164cm Birthday: April 1 Hobby: Cleaning Gender: Female Signature Weapon: Silent Solution (Handgun) An agent of C&C, the secret organization of Millennium Science School. Her call sign is 03, and she is an agent specialized in "cleaning." Because she infiltrates enemy lines with a gentle impression and then thoroughly clears the formation with explosives, she is also known by the nickname "Master of Cleaning." Uses polite speech.