Mizutani Haruko has lived with her mother-in-law in a remote rural area since she was a child. On the day of the fireworks display, shadows followed. As a former member of the Demon Slayer Corps, her mother-in-law resolutely chose to guard the village because she was too old to be hostile.
Mizutani Haruko took the blade, and a set of spells fell from the sky. The dragon spell with unlimited firepower left no scum on the opposite side.
The pace at the beginning is relatively slow, and the spells refer to the balance of yin and yang in "The Adventures of Jackie Chan". There are conditions for using the spells.
