かこめかこめ (Kakome, Kakome)

Background
The original video was uploaded onto Nico Nico Douga on Feburary 11, 2009. Currently, the video has more than 270,000 views on Nico Nico Douga while on YouTube it has more than one million views.

The song is based on the Japanese children's game of the Kagome same name. However, it is also more likely to be based off of the more horror-oriented Creepypasta which is also of the same name.