Meonusumu

Meonusumu is a jutsu created by Kōji using his kekkei genkai Chokkan Tekisei due to the use of the jutsu he has earned the nickname Hiden Thief (秘伝泥棒 Hiden no Dorobō). To use this jutsu Kōji watches his opponent after a few moments his eyes flash purple for a second. After the inital flash the longer the watches an opponent the more he learns about them. Some the after the first flash if an opponent uses a jutsu in front of him he is able to learn that jutsu. He has stated that the longer he watches an opponent the better he is able to understand the workings of the opponent.