Mione checks the specification four times and it does not say alone, and it does not say who else, and the omission has been sitting in that deed since 1911.

MioneThe sea gives you what you want. If what you want is a person, it will bring the person. That is not a spell, that is the covenant being literal.

MalfoidAnd the person remembers.

MioneThe person remembers. The memory is only taken from the body the sea was given. Everyone else in that house keeps it.