nail lain

One morning, a mysterious pumpkin calling itself Lord Jack appeared before the protagonist (default name: Novela).
As she conversed with Lord Jack who insisted he was her friend, the protagonist realized that her memories regarding her age, hobbies, and other personal details were missing.
"Your memories have been hollowed out," Lord Jack explained, revealing that the men living in the same mansion possessed those memories.
"Even though I cannot recall anything else, why is it that I can only remember them?"
Determined to recover her memories, the protagonist resolved to deepen her bonds with them…

(Translated from official website synopsis)