心理的瑕疵

The idea underneath a 事故物件: not a physical fault in the building but a fact about its history that would unsettle a reasonable occupant. Japan's ministry guideline on disclosing deaths notes that whether a given death amounts to a psychological defect, and for how long, turns on the nature of the incident, how widely it became known, and the character of the property, and that courts have held such a defect dilutes as time passes[1]. That is why there is no single rule: a natural death is generally not treated as one, while a suicide, homicide, fire death, or a death that went undiscovered long enough to need specialist cleaning generally is[1].