The realm of Rokugan is vast, stretching from the tainted Shadowlands in the south to the towering northern mountains—yet it is only a small part of Ningen-dō, the Realm of Mortals. And Ningen-dō lies between all of the Spirit Realms, below the Celestial Court of Tengoku, beside the enchanted land of Senkyō, and above the torturous realms of the dead. In most circumstances, mortal samurai stay in Ningen-dō, but the influence of these other realms cannot be underestimated.

The Celestial Realms sourcebook for Legend of the Five Rings Roleplaying boasts three chapters packed with information on the spiritual side of life in the Emerald Empire, covering the cosmology of the Spirit Realms and the Phoenix Clan's roles as the caretakers of Rokugan's soul. With new player options and adventure seeds sprinkled throughout, from the introduction of the Centipede Clan to the ancestral swords belonging to each of the Great Clans, this 144-page full-color sourcebook is an indispensable resource for Game Masters.