Seireitei's New Year

Blut, a special ability of the Quincy, came in two forms: Blut Vene and Blut Arterie.

Both involved directly injecting Reishi into one's own blood vessels, greatly enhancing either the body's defensive power or offensive power.

The extent of that enhancement was directly proportional to the amount of spiritual pressure injected into the blood vessels.

However, the two forms of Blut could not be used at the same time... After all, Quincy were still human, and a person only had one circulatory system. It was impossible to run two forms of Blut simultaneously.

Of course, both pure-blooded and mixed-blood Quincy could learn both forms of Blut.

But for pure-blooded Quincy, Blut was something they were born with...