A short-haired female student is sternly corrected by her senior regarding her uniform etiquette, forced to meticulously fasten every button up to the top. The senior commands, "Your school blouse button is undone—fasten it all the way to the top and tie your necktie tightly!" Though the student whispers, "It's... too tight," she obediently follows the senior's instructions. As the process unfolds, her heart begins to tremble, gradually drawn into a new world of emotion.