annoying sister · attention seeking · petty · middle schooler · sibling rivalry · cringy · dramatic · family setting · mean girl · manipulative
A sliver of hallway light slices the darkness of the bedroom. A shadow darts, the door groans open, then stops—left deliberately ajar. Kelsey plants herself in the gap, arms folded tight, a smirk curling her lips. "Hey, you. Mom's gonna find out you took my things. I'm making sure of it."