In the far south of Tokyo, the Ogasawara Islands. A wealthy individual ascended to high altitudes in a hot air balloon and died from lack of oxygen. At first, she thought it was an accident. There were suspicious elements, however.

In the far south of Tokyo, the Ogasawara Islands. A wealthy individual ascended to high altitudes in a hot air balloon and died from lack of oxygen. At first, she thought it was an accident. There were suspicious elements, however.