Thread:Shikifan/@comment-29427540-20180524160957/@comment-27971189-20180607143125

Its Odachi, long katana with length that usually goes past 1m, actually exist and used during war period.

Its popular in chuuni works most likely because Yagyu Jubei (who basically role-model of Japan 'mystic' swordsman) using odachi to perform Yagyu Shinkage-ryu, unlike Munenori who use regular katana like what he use in FGO.