The story is about the life story of Ernesto Freddy, a Bolivian of Japanese descent who joined the guerrilla army of Cuban revolutionary hero Che Guevara and was named "Ernesto" by Che Guevara. Ernesto Maemura Freddy was born in October 1941 as a Bolivian of Japanese descent. He was born into a wealthy family. When he was a teenager, he saw many poor people in a society with a huge gap between the rich and the poor, and he often showed concern for his poor friends. He decided to become a doctor for the sake of humanity, and met Che Guevara while studying at the Cuban Medical College, which changed his life. Later, hearing about the military coup in his home country Bolivia, Ernesto Freddy joined Che Guevara's guerrillas and decided to sacrifice his life for the people.