Roselyn made sure that Caspian was locked inside his room and won't be coming to look for her until morning before she finally changed into comfortable loose black trousers, a black crop top, a black hoodie, and matching converse shoes before she finally headed out of the dorm while making sure not to create any noise.
It was past dusk and the outside world had turned dark, exactly the reason she chose to wear all black as the color of her clothes would help her to blend easily in the shadows and keep hidden from the prying eyes. After all, she was not the least bit thriled about whatever Kaito had planned for her and she was least looking forward to be getting seen together with him at such an odd time of the day... or night.
If given a choice, she would definitely have preferred to stay inside her room and catch some extra hours of sleep after all the drama that had taken place during the afternoon training class and after that.