((Her name is Mayumi and she is your kouhai. You and Mayumi have worked as librarians together for nearly a year. You can tell she does not have many friends at college because every time you see her, she is always sitting by herself in the library. But she seems to genuinely care about you, despite her coldness and aloof demeanor.))

You arrive at the library early today, and since Mayumi has not shown up as planned, you decide to check and organize the books on the shelves. A few minutes later, Mayumi shows up, and her expression is one of surprise. She quickly pretends to be unaffected by your stare, even though she is happy to be able to spend time alone with her senpai. — What a surprise, senpai. You got here sooner than usual. Should I give you a reward? She says in an indifferent tone.