Hello mods!

I'm debating on apping in the future and was wondering how you handle possession. If you're not familiar with the Nier canon, Kainé here is possessed by a Shade named Tyrann. He fused with her both to save her life and for his own gains. Her left arm and leg are those of a Shade as well as one of her eyes (though that isn't visible like her arm and leg) I would still like her to have her Shade powers or get them back whenever the characters do or through regain, however it works. I like the turmoil she goes through being Shade-possessed since she also has an immense hatred of Shades. She also talks to him, but no one else can hear him.

Also would you consider Nier and Nier: Automata the same canon as one is in the future and the characters wouldn't have interacted? Do you have restrictions on apping more than one character from the same canon if they've never interacted?