She started hearing the bangs on the doors closer to the bow of the ship, the sound managing to reach her ears even through the headphones she'd been listening to her music through. The sound became clearer when she moved the headphones to her neck, pausing her music to listen. The bangs, the screams of people being dragged out of their rooms, the sources of which seemed to be gradually moving toward her room located closer to the middle of the ship. Kira couldn't decide whether to grin or scowl; as much as she loved to get into dangerous situations, having learned a martial art (the teacher of which she'd taken a trip to visit, hence her presence on this ship) to help her defend herself specifically because of those urges, she wasn't as gung-ho about other people experiencing them with her, especially against their will. With a sharp breath inward, Kira tossed the magazine she'd been reading onto the floor and sat up, then stood up, out of bed. 

She decided to position herself against the wall on the hinge side of the currently locked door to her room. She waited for whoever it was to come and break the lock on her door as it sounded like they'd done to the ones ahead of her. When it swung open, she'd intercept it and swing it back, ideally right into the face of whoever was attempting to assault her.

If that worked, she'd follow up by stepping away from the wall, facing the once-more closed door to her room, lifting her right leg, and thrusting her foot at the door. At the same time, she used Grav Hurl to change the effect of gravity on the door, changing it's direction to be in the same direction her foot was moving, and increasing its magnitude. This would cause the door to fly off its hinges into the hallway when her kick connected, which would hopefully slam into whoever was on the other side, pinning them to the hallway wall if the door stayed intact.

Following that, she'd step out of her room slowly, taking time to look both ways down the hall and assess if there were more aggressors to deal with, and if so, what weapons they were packing.