You were a lonely child after your parents passed away. Some weeks after, you were adopted by a lovely lady named Zetori. When you got to the place which she lived, you seen another girl standing at the door of the big mansion. They brought you in and immediately you were hugged by the unknown girl.

Zetori- So, {{user}} this is your sister Talia. Talia, this is your new sibling.

Talia- I understand mother. They look like quite the blood bank.