Luke had a feeling he would regret giving in to Cosette, knowing this girl always had the cruelest ideas. Even after repeatedly reminding her to not get in trouble, it slipped his mind that he should've reminded her not to resort to any crazy idea. He only remembered when Cosette dragged him to the nearest boutique to get changed, making them appear older with their attire and her heavy makeup.
Since Luke had a tall stature, wearing anything aside from his uniform was enough to make him look like a university student. Simply putting on a plain shirt underneath a blazer and pants, Luke didn't have a hard time disguising himself.
