Quadruplet siblings have to confront people about what truly happened behind closed doors; and use Emrys as a blunt and honest response to what happened. Even if he didn't fully know why or what happened. Xander answered more responsibility and told what he even had to hide from his siblings. Showing how he played mini parent even as little as 3. Anna was supposedly the family image. Not much information from other siblings could explain what she felt and experienced. Especially considering how ballet was her life as a form of escapism. Showing how she hid the abusive that was hidden. Alex continued to show signs of multiple disorders even as a kid. Parents turning blind eyes, relying heavily on addictions to survive. Was their issues caused by their parents, or their friends? That becomes more clear.