Yukari Yakumo

Yukari Yakumo is a youkai of boundaries and one of the Sages of Gensokyo. =Youkai and Historical Figures Yukari is based on=

Sukima Onna
Sukima Onna (隙間女) or The Gap Woman – a japanese urban legend, whose origins goes back to the Edo Period. She is described as a woman in red, staring at people through a gap between a wall and a wardrobe.

Wareme-hime
Wareme-hime or The Princess of Cracks – and obscure youkai, that resides in the cracks of walls or rocks, and lures victims close with her voice, before swallowing them whole.

Murasaki Babā
Murasaki Babā (紫ババア) or The Violet Hag – a school ghost story and an urban legend. She is an old women in violet or purple, who appears in school toilets and steal students' livers.

Murasaki Shikibu
Murasaki Shikibu (紫式部) – a poet and a novelist from the Heian Period.

Lafcadio Hearn
Patrick Lafcadio Hearn, later known as Koizumi Yakumo (小泉 八雲) – a journalist, travelogue writer, essayist, novelist, Japanologist and Japanese folklorist.