Sakaki Keitoku, also known as Megumi-chan, hails from a lineage adept at crafting protective written spells against otherworldly entities known as 'hitonarazu'. However, his once-effective spells now draw these beings closer rather than repel them. In a dire predicament, the solution to his plight appears to involve a drastic act - slicing his own neck. Will this extreme measure prove to be his salvation?