The magical devices currently used in daily life mainly consist of two parts. The first is various types of crystal stones that serve as energy sources or raw materials, such as fire-attribute crystal stones for heating, ice-attribute crystal stones for freezing and preserving food, and water-attribute crystal stones for providing clean water.
Mages who have reached a certain level can use their mental power to draw magic circles, thereby creating their own unique spells.
In the study of magical devices, this ability can be used to imbue crystal stones with various properties, such as heating upon touch, adjusting the output scale of the crystal stone based on pressure, and various special effects.
Everything one can imagine can be achieved through magic circles.
This is why some people consider the study of magical devices to be equivalent to the study of magic circles. The latter is indeed the soul of magical devices, but it is not everything.
