Should she spoil it or not?
That question spun through Shizuku's mind for a second before she arrived at an answer.
She definitely should spoil it!
Why shouldn't she?
Stirring up trouble was so much fun!
She remembered that in the original story, Hiei didn't acknowledge Yukina because the person who transplanted his Evil Eye had made him promise not to acknowledge his sister. And Hiei himself didn't seem to have any reason to acknowledge Yukina either.
But what did that have to do with her?
They only said Hiei couldn't acknowledge his sister. They never said his sister couldn't acknowledge Hiei.
What can you do to me if I spoil it?
In the original story, everyone who knew about it was Hiei's companion, so since he personally threatened them not to say anything, naturally no one did. But things were different now. Why should she care about his bullshit? She didn't even know that gloomy little runt. To her, the request of a cute, beautiful girl was obviously more important.
If he wasn't happy about it, he could come fight her. Nyah, nyah, nyah. She'd grind him into the ground a hundred and eight thousand times.
Of course, even spoilers required the right timing. Telling Yukina now would be pointless. Besides, Shizuku still wasn't sure how far the current Yu Yu Hakusho plot had progressed, so she couldn't be bothered to worry about it. But since the Spirit World had its eye on her, she would meet Hiei sooner or later. When that happened, she would just lay everything bare and see where Hiei could run.
Thus, Shizuku ultimately agreed to let Yukina stay. She even gave her a bracelet to conceal her presence. That way, no matter how capable Hiei was, he wouldn't be able to find Yukina.