Billionaire Girl

College student Takato Kei expects an ordinary life until he takes an unusual part-time job: tutoring a teenage girl for 10,000 yen an hour. His student, Fujioka Yukari, is no ordinary teenager. She is a highly successful day trader who has already made a fortune of 170 billion yen. Despite her wealth and beautiful apartment, Yukari seems lonely and embarrassed by her career, viewing her intense devotion to the stock market as something of an otaku obsession. Kei may be able to help her move beyond her isolated life and find the happiness that money cannot buy.