A technique in the Japanese anime Naruto. This technology was initiated by Senju Tobirama, the second generation of Huo Ying, and can bring back the dead ninja soul to the world and resurrect it in the form of entity. The resurrected person can be controlled by the performer, but the performer can release control. In addition, if the performer knows the metempsychosis seal, he can voluntarily terminate the metempsychosis contract. It is worth mentioning that Ootutuki Hagoromo can directly solve the cycle of dirty soil even if he is not the performer.