Yafutoma is the wet and wind-swept continent found in the Frontier Lands, under the Blue Moon. It is based on Eastern Asian culture. Judging by how they react to Vyse and crew's appearance, it has been a very long time since they last saw "westerners." Yafutoma is where King Daigo holds his court
Yafutoma is surrounded by a huge wall (Discovery # 39: The Guardian Walls) and covered with large amounts of water. Bathed in the Light of the Blue moon. The bodies of water are so large in this kingdom that some species of fish have even adapted to live in them. Near the center of the Kingdom is Mount Kazai, the most dominant landmark throughout the whole of Yafutoma. The lifeless form of the Gigas Bluheim lies on the Mountain's slope.
Yafutoma is led by the Mikado, with Kangan acting as adviser (until he is banished to Tenkou Island with his son Muraji). The Mikado has a son, Prince Daigo (who had been banished to Tenkou Island prior to Vyse's arrival), and a daughter, Princess Moegi (who leaves with the party).
They are eager when Vyse arrives, hoping he can recover the Maga Sphere. Kangan and Muraji, however, believe that the "westerners" are trouble and ask the Mikado to banish them. Ironically, they end up siding with the Valuans upon their arrival in hopes of seizing power in Yafutoma. They are banished to Tenkou Island after Valua leaves Yafutoma in defeat. After the battle with the Valuan Armada and Bluheim, the Mikado gives Vyse the Blue Moon Crystal.
The soldiers seem somewhat disorganized. The entirety of the Yafutoman navy seems to be considered outlaws, as there are no warships seen save for those used by the Tenkou. Not only that, but when the Yafutoman guards first greet the party, one insists they leave and the other invites the party to stay and meet the Mikado. The presence of a weak central army is a direct parallel to China's outdated military during the Imperial era, and was why China (Yafutoma) so quickly fell to western powers (Valua).
Yafutoma is a very interesting place. It is actually an archipelago, like Japan, connected by waterfalls, bridges, elevators, and ramps. The dock is water with a stone pier. Attached to the pier is a ship shop, whose owner takes the party to Mount Kazai. The next island up, connected by ramps, has a restaurant (where Urala is recruited), an item shop, a weapon shop, and a tub-boat rental station. Using the tub-boat, it is possible to reach another area where a few houses can be found and Kirala can be recruited. An elevator can be used to go back up. The throne and guest quarters can be reached by another elevator.
- The Mikado is the name of a famous musical.
- The Guardian Walls may be a parody of The Great wall of China.
- The armor worn by Yafuotoman soldiers is based on samurai armor.
- Yafutoman weapons are based on the Dao sword design and the Guan Dao and Woldo polearm designs.
- Obviously, Yafutoma is based on real world Japan, from architecture and government stylings to its practice of isolationalism and distrust toward "westerners". On the latter, one could consider Valua's attempts to establish diplomatic channels with Yafutoma to be analagous with early Portuguese attempts to do the same with Japan, especially given that Portugal also used priest-inspired revolts and alliances with friendly clans to try and establish dominance over the country.