Part 9, Start of the Second NightVideo Link.
Mafuyu's Notes 2 - The mansion's curse
"I must have been passed out. I'm afraid it's too late to help Mr. Takamine... If only I had come to sooner! The spirits in this mansion are very powerful. The force behind this curse must be here somewhere... And I'm going to start looking for it right now!"
Blind Demon Ritual
Text on Old Scroll - The Blind Demon Ritual
"On the 26
th day of the 11
th month, in preparation for the Strangling Ritual 10
years later, choose a maiden with holy power.
She should be past the age of 7
months, and 25
And that's it for files.
Honestly, I'm surprised I waited for the Shutter Chance near the end rather than reflexively shooting.