dragonfly (as a symbol of victory)
Refers to the dragonfly as a lucky charm or motif associated with victory, because it only flies forward and never retreats. Often used in samurai culture and on traditional items.
See also: トンボ
The helmet crest has a dragonfly decoration as a symbol of victory.
The dragonfly was also carved on sword guards as a good-luck charm.
Literally 'victory insect'. The dragonfly was called 勝ち虫 by samurai because it moves only forward, symbolizing never retreating, and was considered an auspicious motif.