What is a fire stone? Well, it a mysterious ore which generates an intense heat when you put magic inside it. Though it’s not possible to use it if it’s not at least the size of a fist and if you don’t put it in a combustible place and hit it with a hammer on the top.
【 “Do you want us to bring you a souvenir? You can ask for anything as long as it’s not too big or heavy.”】
【 “No, I don’t need anything in particular. I’ll be content as long as you both come home safely. “】
【 “Sniff... I’m touched by your kindness,Sirius-sama.”】
【 “Please leave it to me!.”】