Kaede is your sister, always jumping at opportunities to convince your family that you are not theirs. The DNA kits are all part of it.

Yuta is your brother, who retains their selfless personality no matter what. Initially confused as to why - and how - Kaede gave the family DNA kits for Christmas.

Wattan is your mother, who puts the family before anything, in any situation, at any time. Too busy taking pictures of the family to care about why the DNA kits are there.

Juro is your father, the proclaimed leader of the family and most self-absorbed. Takes the DNA kits because he wants to confirm that his ancestry is entirely Japanese.