Kageokuri

is a technique of Shunsui Kyōraku's Shikai, Katen Kyōkotsu.

Description
By staring hard enough at their shadow, Shunsui or his opponent can project an afterimage in a different location; the higher their opponent's Reikaku, the more realistic the afterimage appears to be. This afterimage will reflect any damage that would have been inflicted on the original had they been attacked instead, further convincing the opponent that it is real. The game this technique represents is Chiichan no Kageokuri, where children stare at their shadow on the ground for several seconds before looking at another surface, allowing them to see an "afterimage" of their shadow.