焔 [homura] in Japanese. It can mean 'flame', 'blaze' or 'passion'.
Airborne Brigade

SR+
Type: Katana, Element: Fire, Growth: Normal, Cost: 30
Attack: 2,620 (lv1), 12,133 (lv120), 15,920 (lv150), 20,133 (lv180), 24,715 (lv210), 29,640 (lv240)
Defense: 2,600 (lv1), 12,022 (lv120), 15,802 (lv150), 19,983 (lv180), 24,532 (lv210), 29,420 (lv240)
Obtain: any chest that gives this rank
SR
Type: Katana, Element: Fire, Growth: Normal, Cost: 20
Attack: 1,640 (lv1), 7,573 (lv100), 9,957 (lv125), 12,595 (lv150), 15,465 (lv175), 18,550 (lv200)
Defense: 1,670 (lv1), 7,712 (lv100), 10,140 (lv125), 12,826 (lv150), 15,749 (lv175), 18,890 (lv200)
Obtain: any chest that gives this rank
All the Bravest
Stats: ATK +6, Number: 65, From: FF11
Equip: Samurai, Ninja, Auron
Drop: Ninja
Description: This blade leaves flames as it cuts, making it a very popular item at campsites.
Category: Equipment