The story revolves around the fear of Kugiko-san, an urban legend spread among children. According to rumors, people who have encountered Kugiko-san have had nails (kugi) driven into their eyes. A solitary male shoujo manga creator named "P" follows the truth behind the urban legend.

[url=https://www.mangaupdates.com/series.html?id=69891]Kugiko-san[/url] (クギ子さん) - parent story that Kugiko-chan was based off; included at the end of each volume:
[*]Volume 1: Fan Letter (ファンレター; 2 chapters) Nakayoshi, Sep-Oct 2011
[*]Volume 2: Kugiko-san Jouhou - First Part (クギ子さん情報)
[*]Volume 3: Kugiko-san Jouhou - Last Part