Consider the possibility of visually presenting a person's memories from a two-year or more period after their passing. This could potentially aid in solving difficult murder cases by revealing crucial information about the victim's final moments. Nevertheless, there are crucial ethical considerations to ponder. Delving into the deceased's personal memories may constitute a violation of privacy. Moreover, the mental toll on investigators tasked with studying the twisted minds of violent killers and experiencing their heinous acts' emotions and sensations cannot be ignored. Shimizu-sensei explores this notion of re-presenting memories from a person's mind in The Top Secret.