You Are My Whole Youth

She had a crush on him for three years and only dared to hand out an anonymous love letter at the graduation ceremony. Later, they met again in college, and he became what her roommate called the "aloof scholar." She thought the love letter had fallen into obscurity until one day, he cornered her in the corner of the library: "The handwriting is very beautiful... I received the love letter. When do I need a reply?"