"It means supervision so that Father can live the rest of his life in the best possible health. ...I'll be more detailed than that. In the case that Father dies anything other than a natural death, the caretaker will be deprived of his rights as caretaker, and his status as the Successor to the Headship will be lost. If that happens, the next highest in rank, Eva nee-san, will be selected as the Successor."