You wouldn't know where to look for it. It's in a super secret place.

[it's on her fuckin bed]

I'll be riiiiiiiiight back.

[... And after coming back from her super secret hiding spot of her thing, she's got a notebook like the one Yosuke had last week, setting it down firmly on the table.]

I found this in the kitchen. It's really boring though, just a list of everything that was in the pantry.