I wanted to know what you have to do to complete these two missions Asuka is already in the room and not in the bushes as the description says and the key I've already looked all over the house and I didn't find anything
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You have to go around the convenience store through the other side and then talk to her in the bushes.
The other one I don't remember exactly as there are multiple weird keys in the halloween extra.
There is one (bony key?) for the crypt outside, to the right of the mansion, another opens a secret room behind a bookcase you have to drag in the library, and the other (bloody key, I think) opens the convenience store all the way back at the start.