1) Regarding Kita:

Kita is a seraph, a being that should have been impossible to find. An invisible watcher of humanity, she has died and been reborn for centuries, recording life for the Rulers above. Aizen finding and starting his plan to use Kita for his own gain is the final straw against the Gods and the Balance of the Worlds, beginning the Reckoning.

Kita is one of our main characters, therefore, the same rules apply to her as they do to the rest of the Bleach cast. She can't be killed. HOWEVER, where she and her position or power level can be altered. She is more changeable than the rest. Keep that in mind as we play.

The Gods are not using Kita as their weapon, but that is not the same as saying that the Gods will not be interested in the way she choose to live now that her memories have begun to return through force.