Akitsumikami

Akitsumikami (現御神,Akitsumikami) are an ancient race of spirits that are stated to be older then Shinigami and Hollows. According to ..... their are at total of 72 known Akitsumikami.

Abilities
Size Alteration: While normally appearing as giant entities, an Akitsumikami is able to freely manipulate its size.

Unique Abilities: According to ..... each Akitsumikami has a unique ability, which is passed on to its host upon them using the Osushintai.

Telepathy: After choosing a host, the Akitsumikami is able to converse with them at any given time.

Host: Akitsumikami are able to choose a host, to which they reside it. While uncommon, several Akitsumikami can choose the same host. As stated by......, the Akitsumikami require a host to exist outside of their own dimension. While normally choosing as their host, they can choose other beings as well. In addition to this, when a host dies the Akitsumikami returns to its unique dimension and enters a deep sleep before awaking sometime later.

Flight: An ability given to the Akitsumikami's host upon using the Osushintai.

Ushihaku (possessing a certain place as one's own): is a technique usable by all Akitsumikami. Similar to a Shinigami's inner world. The Akitsumikami exists in a unique space that it has total control over. Once an Akitsumikami choose a host, said host is able to enter the space as well. Unlike the inner world of a Shinigami, is it able to prevent its host from entering or pull it's host into it at anytime.

Osushintai (居る神体, To be the body of the kami): An ability provided to the Akitsumikami's host. Similar to that of an Arrancar's and a Clan-Type Fullbring. The Host is able to channel the Akitsumikami though their body. This gives them access to the Akitsumikami's ability and changes their forms. It's stated that the initial use of the Osushintai strains the user body, thus limiting the time it can be activated. However, the more they train the longer they are able to keep it active.

Kushimitama (奇御霊, wondrous soul): A rather unique ability. After choosing a host, the Akitsumikami is able to share it's power with another that it's close to its host. In doing this, the individual gains a unique marking on their body. Activated thought the similar to the use of the Osushintai.

Trivia

 * The term Akitsumikami is applied to deities who come from the spiritual world and clearly appear in this world.