10-year-old Billionaire

Hiro Okuyama is a fifth-grade elementary school student. He had been living a carefree life with his wealthy father. Until one day, his father suddenly disappears. What’s left behind is a stock account containing only 10,000 yen, and Kameyama, the guardian spirit of a golden turtle.

To save his father, Hiro plunges into the world of stocks, aiming to turn a mere 10,000 yen into 100 million yen—!

A never-before-seen juvenile money battle begins, where friendship, tears, and money collide!!