Isamu will create a large storm cloud to help produce a red-colored rain. The blood-like rain falls from rain clouds, formed with Isamu's own chakra. Using the rain as a medium, Isamu is able to use the many raindrops to help perform a loop genjutsu through physical touch, sound, and scent. This genjutsu technique has been said to be useful in battle against numerous opponents, trapping them in a world that mirrors reality. This causes them to instantaneous — but temporary — loss of consciousness or paralysis in the target, drastically slow down their reaction time, mistake their allies for their enemies. Once Isamu's chakra is inserted in his opponent's body, the poisonous chakra will begin to spread infiltrating the opponent's body.