Leo Shishigami

Leo Shishigami (レオ・獅子神) is a Japanese drifter and the protagonist of Season 1.

Background
During World War II, Leo served as a soldier in the Japanese army. He was primarily an instructor for new recruits, however, after the sudden surrender of the Japanese, Leo's return ship sank and he was captured by Allied forces. He was held in an Allied detention facility for three years until he was repatriated at the beginning of.

Season 1
Afterwards, Leo leaves the country to continue wandering.

Last Season
Leo returns to Japan and meets Jeanne Amakawa. He introduces himself to her as "John" and the pair bond after defending several storefronts from Primavera's thugs.

In 2013, Jeanne reveals that Rose's death had been faked; in truth, she had quietly left District 23 with Leo. The two eventually married, with Leo adopting the name "Koutarou Hayashibara."

Trivia

 * The first two characters of "Shishigami" (獅子) mean "lion" in Japanese.