[Shock. Horror. Gasp.] Evil spirits dislike the sunlight. It bares all of their sins and their evil qi isn't nearly as powerful in it. For ghosts that could mean the difference between manifesting and...not.

[He cocks his head at the laughter, arching a brow.]

Don't listen to Himeko. A special occasion is a special occasion. If you want to keep celebrating here, I could keep you company.

[Worst idea ever.]

They might or they might not. You'll probably see them again if your world isn't destroyed.