Junzi


 * 1) A brand of chocolate made by Tanuki in an enclave
 * 2) The Four Gentlemen or the Four Storms; swords of Dragon Lore

The Junzi
"The Four Gentlemen--Chrysanthemum, plum, orchid and bamboo. They have long represented the seasons."  "Every hatchling knows about the dangers represented by the Junzi. They're the stuff of nightmares.... We call them the Four Storms."

The "Chrysanthemum Blaze" was hidden in Kikusawa Shrine for "over a millennia." Saint Midori heard the rumors and came to find it, and it became hers 'of necessity' when she defended the city and its people from dragons. About 500 years before (double check that). It was placed back there "kept in reserve, for emergencies" and only to be given to someone who already knew that it was there, which turned out to be Midori again in Book 2.

It is an unusual sword. "Red crystals created a lavish floral pattern on the naked blade resting in its holder. While beautiful, the gleaming stones made the blade quite heavy for its size. The edge was certainly keen, but a sword so heavy wouldn't be practical in battle. An Amaranthine could have lifted it, but he weapon was reinforced with a dazzling array of sigils to fend them off. Their mysterious sword was intended for reavers' use."

Since "crystals of this color [are] a lure, useful in the construction of traps" its primary purpose is to trap dragons. A beacon with that much crystal can "out-ply any dragon... Within range." But the second purpose of the Blaze is to slay dragons. It's an "executioner's blade" as Sinder puts it.

Since it is briefly referred to as just "The Blaze," we can assume the other swords would not be "Plum Blaze" and so on. They have yet to be seen in any of the books (2020).