Oguna: Takeru - Susanoh - Mashou no Ken Yori Gaiden

A nation known as Amamikado once waged war and extended its territory. Within this empire, two princes lived, one of whom was Oguna. The Emperor, ruler of Amamikado, taught Oguna the skills of an assassin. Driven by a desire for power to support his father's ambitions, Oguna pursued his training. This is the story of the assassin prior to his encounter with Izumo.