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With Ranmaru's Kekkei Genkai, the user is able to cast a genjutsu involving the creation of silhouettes or illusory beings as a means of distraction. The entities are so realistic that they even have their own chakra pathway system, which can fool even the "all-seeing" Byakugan. Where a shadow is attacked, it automatically disappears like a ghost and then reappears.
This technique can also become more effective when used in conjunction with Hiding in Mist Technique.