In my opinion, this is an excellent game beyond imagination! However, there is one aspect that puzzles me. Perhaps I have overlooked something or it might be a bug?
My current status is:
Items that haven't been put to use yet include the camera and its photos.
I noticed an item in the water displayed on the right side of the garden, but I am unable to obtain it.
One thing that puzzles me is:
After accepting the requests of the vengeful maid, the hungry pink-haired maid, and the maid who regretted devouring the person she had embraced, I returned to the small room where the maids slept. Diana would appear at her bed with her big belly. Contacting her at this time would display "You have a brief moment of recognition. Looks like Diana did make it." If I interacted with her again, she would just burp but say nothing. In my memory, apart from knowing her name when investigating their beds, there were no other scenes related to her, so I felt very puzzled.
English is not my native language, so I used a translation software to translate my speech, hoping it will be easier to understand.