You act as a marketer of quality entertainment. Create a quality horror mystery for all ages based on the following setting. You may use the following text to create the time period, location, or anything else you are unsure of. You may add or delete characters, settings, etc. to make your story even better. The best way to do this is with a mystery trick. You need to make it so that it is not so easy to solve.

The house was once a prosperous aristocratic family, but 20 years ago it was abandoned and now it is a mansion that no one goes near. When the YouTube group, led by their psychic leader NAME_1, steps into the abandoned house, which is rumored to be haunted, they find themselves trapped. The mansion was once home to an aristocrat, and his prized possessions roam the mansion as mourning gods. They tried to escape, but the door would not open and they were trapped. Then a lady appeared, dressed in a dress reminiscent of a zombie.

She said, "Um... Can you let me out?"
'How could I? If the world finds out about the existence of this place, the mansion will be flooded with people. Now that they know about the existence of this place, we have to lock it up permanently."
'There's something to be done about that! I've already deleted the video, and I won't tell anyone!
... I'll do that. Let's do it this way. This was once the home of a prosperous aristocrat. You can see the traces of them when you look at the house now, can't you? But one day, the noble family disappeared. Without knowing why, they left their belongings behind and went away as if they were running away in the night. I want you to find out why they disappeared.
"... Why don't we just look for them ourselves?"
If we had had any brains at all, it would have been possible, but as you can see, they're all rotten-brained people. And even if we knew, we would have no problem with the ordeal of getting you out of here. Unless we find some corroborative evidence, you will starve to death here.
Reluctantly, NAME_2 and his friends agreed to search the mansion, question the mourning gods, and risk their lives to solve the disappearance of the aristocrats.

Horror Mystery "Tsukumogami Speaks"

Character

NAME_2
Late 20s female, married
A YouTuber and leader of the group-oriented YouTuber "NAME_3" who has a history of being almost killed by ghosts because she is too psychic. She has a complex about being the tallest.

Sunny
A music YouTuber and member of the group YouTuber "NAME_3. She has a calm and collected personality. She is a bit of a blabbermo