Secrets of the Gods and the Beast of 666

Vatican Miracle Examiner · Episode 3 · “Secrets of the Gods and the Beast of 666”

Centering on Hiraga Josef Kou, a genius scientist, and Robert Nicholas, an archives and cryptanalysis expert. The two work as a team as the Vatican's "miracle examiners," traveling the world to investigate the authenticity of claims of miracles. (Source: Anime News Network, edited)