Koyomi, who wants to change herself and has a clumsy, childlike physique, decides to learn magic using a PC from the modern-day surviving witch, Misa. However, Koyomi's magic goes awry, summoning even demons from another world! Meanwhile, strange occurrences begin to happen across various places due to a network-type large-scale magic. With the genius magical girl Yumiko and the science-minded class president Kaho getting involved, Koyomi's grand adventure begins! This is a highly anticipated debut work by Hiroshi Sakurazaka, completely revamped!