During the 15th and 16th centuries, Japan's feudal families vied for supremacy, amassing vast armies to ensure their dominion and to conquer weaker neighbors. Battles grew in scale from a few hundred combatants to several thousand. The necessity of creating so many helmets for a multitude of troops required simpler designs in comparison to the earlier, multi-plate suji-bachi types. In addition, the importation of matchlock firearms from Europe meant that helmets with smooth surfaces were preferred since they helped deflect musket balls. These factors gave rise to a simple, three plate design. However, high-ranking lords began to embellish their helmets with sculptural forms so that they could be visually located on the battlefield. Exotic helmets (kawari kabuto) also allowed leaders to choose symbolic motifs for their helmets that reflected some aspect of their personality or that of their collective battalions.
This helmet is shaped like a giant dragonfly. In Japan, the dragonfly is symbolic of focused endeavor and vigilance because of its manner of moving up, down and sideways while continuing to face forward. In addition, in ancient texts Japan was often referred to as Akitsushima (Land of the Dragonflies), because of their abundance. They were also thought to be the spirits of rice, since they are often to be found hovering above the flooded rice fields.