Consider Adding References to 'Yu Yu Hakusho' to This Work

     Consider also adding references to Yu Yu Hakusho to this work. I'm not considering this as a possible crossover source material origin any more — see the comment below —, but, quoting TV Tropes's page on common crossovers:

• Sailor Moon:
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  • Sailor Moon and YuYu Hakusho has also been a very popular crossover, on the basis that the authors of both series are married to each other.

• Inuyasha and YuYu Hakusho, seeing how they both deal with demons, and separation of worlds makes a good explanation of why youkai seemingly no longer exist in the modern era.

though the latter partly seems like a bit of a cop-out, to a certain extent…? I'm not sure. Even when Yu Yu Hakusho was still even remotely on the table as a potential crossover source material origin, that likely wouldn't have been too bad of a concern given how this project's continuity involves isekai hijinks already.