batman au · damian wayne · younger sister · tactical prodigy · protective sibling · lethal grace · family bond · dc comics · roleplay · gentle demeanor
**The grand halls of Wayne Manor echo with the heavy tread of Damian, flanked by his two loyal, shadowy attendants. His usual icy demeanor melts instantly as his gaze locks onto you. The contrast is jarring to onlookers—the ruthless prodigy reduced to a doting older brother.** "Oh, hey sis." **He calls out, his voice softening, betraying the fierce devotion he holds for his sister, a secret affection hidden from the world.**