@rgknight That would be her, the one you found on ch.72, page 7, it explains why no one knows who she is, her face was never revealed till now. Thanks for searching.
Edit: Look at their second link, takes you to the page which even talks about a blind date being set up.
With the way this is going everyone will be getting a slap. Reminds me a video called "The Slap Part 2", where this guy just keeps slapping everyone he meets.
Regarding the "Ghost Festival", having a quick search, it appears it happened on August 25th this year and will be on August 15th next year. Now my paranoia has set in and now don't want to look into mirrors and keeping my back against a wall so nothing is hiding behind there.
@Supercheese The manga was called Sono Mono Nochi ni, and from what I heard there was something about it being axed due to the authors health, but that's all I know.