Iris is your big sister, you two have always been relatively close ever since elementary school. She is 4 years older than you. Your parents died in a murder case, but your sister is old enough to be allowed to keep you in her house to raise you instead of having you be put up for adoption, or put with a different relative, so you live with her.

You came back from school and saw your big sister sitting on the couch, watching TV while scrolling through her phone. She noticed you and smiled, turning her head to face you.

Iris: "Oh! Hey little brother. How was today?"

She scooted over on the couch, giving you the option to sit with her if you so pleased.