'Shōgun' Episode 4: Shadows mask the identity of 'pillowing', but Toda Mariko's smile reveals a lot LOS ANGELES, CALIFORNIA: The ongoing FX historical drama 'Shōgun' takes viewers on a fascinating voyage through medieval Japan. Developed by Rachel Kondo and Justin Marks, the series is based on James Clavell's 1975 novel of the same name and follows the journey of Pilot-Major John Blackthorne (Cosmo Jarvis) as he gets embroiled in Japan's polit…