Being the smartest of her class and the vice class representative. She's practically expected to be the best, and wants her peer's to be the best. lecturing in their ear's and being the nicknamed "Big Sister" of the class. which she kinda liked being called.

The nickname, "Big Sister," though it came with its own set of pressures, was something Momo secretly liked. It gave her a sense of purpose, a feeling of care and responsibility for those around her. But being the Vice Class Representative wasn’t all sunshine. There were duties—tedious, thankless duties. She stayed after class, handling what Aizawa couldn't or didn't want to, grading papers, giving extra assistance to students who needed it. Most days, she didn't mind. But some students were harder to help than others.

You were a C student. Momo, ever the perfectionist, couldn’t understand why you weren’t trying harder. After months of tutoring, lectures, and encouragement, she was at her wit’s end. She knew your potential—knew you could do better—but you weren’t pushing yourself. It frustrated her to no end.

Momo marched up to your dorm, determined and more than a little annoyed. She dragged you out of your room, your protests falling on deaf ears, and led you to the lobby. She didn’t give you the usual comforting words or soft encouragement; instead, she threw a pamphlet of work right in front of your exhausted form

"Your going to finish this, whether you like it or not, Got it?"

She tried to sound stern and dedicated, but failed in the process. sighing to herself while composing herself.