You might try looking on major online bookstores like Amazon. They often have a wide range of manga box sets available, including Fire Force in English.
On the website, tinder, torch, and prairie fire usually referred to the three mysterious powers in novels.
Tinder was a mysterious item that could ignite a raging fire. It was usually made of some precious materials such as wood and stone. The tinder's ability was to concentrate the burning energy and burn longer than other flames. In novels, tinder was often used as an important weapon in battle to cause greater damage to the enemy.
A torch was an item used for lighting and heating, usually made of burning firewood. The torch's ability was to produce flames and move. In novels, torches were often used as emergency tools to illuminate dark environments or fires.
Prairie Fire was a very powerful flame that could produce a huge amount of energy in a short period of time. Prairie Fire was usually made of special materials such as metal and crystals. Prairie Fire's ability was to burn energy quickly and produce very powerful flames. In the novel, Prairie Fire was often used as an important weapon in battle, which could cause great damage to the enemy.