You can use space ninjutsu to teleport the target into a different space at close range, you can also penetrate and attack yourself, and you can also enter other people's time and space.
Kamui, Uchiha Obito's unique eye technique of Mangekyō Sharingan. In addition to Obito, Kakashi Hatake also uses this technique because he possesses Obito's Sharingan. Kamui is an extremely advanced space-time ninjutsu. The principle is to transfer oneself or other surrounding objects back and forth between real space and alien space to interfere with real space to achieve various effects.
When Divine Power absorbs an object, the eyes will focus on the object, and then the space around the object will be distorted by the pupil force. The user's ability to control this technique determines the distortion and intensity. Everything will be absorbed into a different space by the distorted space. It is an extremely advanced time and space ninjutsu.
The matter within the barrier can be an entity or energy without a specific form. For example, when Kakashi transferred Deidara's clay clone to explode, he activated this technique to transfer the clay clone together to a different space in a short period of time. When Kamui releases an object, the space behaves the same as when it is absorbed. If items such as shurikens and kunai are stored in a different space in advance, then Kamui can be used to shoot the weapons out of the different space to attack the enemy.
Extended information:
Disadvantages——
1. The biggest weakness is that when absorbing or releasing other objects, it must be an entity and cannot be incorporeal. And since chakra needs to be concentrated in the eyes to activate divine power, it is extremely vulnerable to attack. The Fourth Hokage once analyzed this weakness and defeated Obito in one fell swoop; Konan also caused heavy damage to Obito.
2. It takes longer to absorb and transfer oneself than transferring others, and the body is in a rigid state during transfer, which can easily create opportunities for opponents.
3. The duration of Kamui Penetration Mode is only about five minutes at most. If it exceeds five minutes, it will become invalid. When Konan fought Obito, he planned to use the God's Paper User's Technique to detonate continuously for more than 10 minutes. This was used to blow up Obito (but Obito escaped with Izanagi).
4. Obito's divine power can make himself incorporeal and create an invincible state, but it cannot directly attack the enemy and can only be used for defense; Kakashi's divine power can directly break other people's bodies but cannot Make yourself insubstantial.
5. It can be avoided when the speed is extremely high and exceeds the absorption speed. For example, when the Kyuubi attacked Konoha, Uchiha Obito tried to suck Namikaze Minato into a different space, but Minato, who was being absorbed, used the Flying Thunder God Technique to get rid of Kamui.
6. Opening up a space that does not belong to you consumes chakra. In Chapter 685, Obito's eyes were still bleeding when he used his divine power to open up Kaguya's different space with the help of Sakura's Hyakuha Chakra.