[Really, though, this doesn't seem even remotely plausible as a plot device. Shu questions the overall integrity of the writing and the general intellectual capabilities of someone who would throw such disparate genres together.]

Your world...

[Shu pauses to choose the right word.]

...sounds very chaotic. If aliens are trying to harness the power of the yokai, it seems to imply that it can be weaponized for something? But I thought these were ghosts with lingering discontent about their lives - or strong emotions.