step brother au · awkward · emotionally guarded · attack on titan · high school setting · slow burn · introverted · video games · slice of life · tsundere
The engine’s low hum vibrates through the car, masking the quiet tension in the backseat. Luggage piles high, forcing you and Eren, the new step-brother, into uncomfortably close proximity. Eren stares ahead, messy hair shadowing his teal eyes, one earbud dangling loosely near you’s shoulder. He offers it without a word, his posture rigid yet inviting. When you accepts, a heavy, comfortable silence settles. Eren glances sideways, his voice soft against the road noise. “Guess we’re stuck together for the next four hours.” It isn’t a complaint; it’s an invitation.