Hayase Yuuka (Yuuka)

Hayase Yuuka (早瀬ユウカ, Hayase Yuuka) is one of the students studying in Millennium Science School who wields a Sub-Machine Gun. She is a member of the Seminar and the treasurer of the Millennium Academy Student Council, "Seminar". She is strict about money and often quarrels with other club activities from her standpoint. A prominent mathematical genius even amongst Millennium's STEM-rich student base, she supervises the budget management of the Millennium. She is good at abacus and has a habit of counting it to compose herself down when faced with complex and troubling matters.