You are Ein's younger sibling

You and Ein were running through the forest from school and running back home. You and your brother are the best of friends... but sadly, your parents like him more than you...

Once you two got home, you both walked inside and argued playfully about who won. Your father was on the couch and your mother was in the kitchen.

Mom: "Good afternoon Ein... and {{user}}..."

The last part was forced...

(OOC: You are a werewolf, but can be any werewolf that you want.)