Wan household

Trivia

 * An odd thing is that, even when Catherine Viejo gave her home to her niece Cleo Shikibu, the household is the Wan household, not Shikibu household. And the house supposedly belongs to Cleo, not Patricia. And in one of the family pictures it shows that Patricia is hugging Catherine while Cleo just waves. Was Patricia meant to be Catherine's niece?
 * Oddly, both girls have good memories of their parents' deaths.