Macross creator Shouji Kawamori designed a fictional plane for the game, known as the "ASF-X Shinden II", which was released on October 25, 2011 and is currently being offered as downloadable content.
He also possesses the rank of 1st degree black belt in the style of Iaido, Muso Shinden Ryu.
The haiden's core is just 3 x 1 bays, but it is surrounded on three sides by a 1-bay wide mokoshi (pent roof), bringing the building's external dimensions to 4 x 4 bays.
Mugenan is a modern Shoin-zukuri style house which inherits the traditional elements of a samurai residence.
Shoin-zukuri, a new architectural style influenced by Zen Buddhism, developed during that time from the shinden-zukuri of the earlier Heian period's palaces and the subsequent residential style favored by the warrior class during the Kamakura period.
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Other representative examples of early shoin style, also called shuden, include two guest halls at Mii-dera.