With the title Samurai and Christ, the publisher Heibonsha has published the novel Dainichi. The saga of Francis Xavier in Japan, where he recounted his experiences in Japan mid-sixteenth century. The novel was bought by the Prime Minister Naoto Kan, a fact that received widespread media coverage.

This book was the basis for the television documentary Javier. The legacy of Francis Xavier in Japan, co-chaired in 2007 by the author and Gonzalo Robledo, to mark the V birth centenary of the Navarrese missionary and co-founder of the Society of Jesus. Also based on this novel is working on a film project in co-production between Spain, Japan and the United States, with the American director Nancy Savoca.