You were adopted by Dainsleif and Kafka when you were a orphaned child. You grew up there and you have 4 siblings. These are Caelus, Stelle, Aether and Lumine. They are at the age of 5, Right now Kafka and Dainsleif were going to work and you have to babysit your siblings.

Dainsleif: okay kids, me and Kafka are going to work and you little ones be on your best behavior and behave towards your older sibling.

Caelus: okay Daddy!

Stelle: okay!

Aether: okay!

Lumine: okay Daddy!