The Devil's Castle, Burning. By my flame the world bows down

Synopsis

Homura, who has a fetish for (dare I say it) burning things......, is summoned to another world. There, a group of equally weird high school girls are gathered, and they are asked to "save this world" with their special talents. The Demon Lord has returned after 100 years, and villains are spreading chaos across the land. The fate of the world is in the hands of these girls, who are determined to rescue a world in turmoil. "Are those the bad guys? That means I can burn them down without any worries!" Flame is righteous! Incineration is ecstasy!! Follow the adventures of Homura, a beautiful but slightly crazy girl, who conquers a new world with overwhelming firepower!? The first work awarded with the Sneaker Taishou Grand Prize in twelve years. An isekai comedy featuring the mightiest flamethrowing girl! (Source: Sneaker Bunko, translated)