|Light Novel||Yahari Ore no Seishun Rom-Com wa Machigatteiru.|
Yumiko is a popular girl from class 2F with a pompous personality. She is the main female figure in Hayato's clique. Due to her popularity, she has no trouble making friends and thus has little to no understanding towards people who have social troubles. She brushes off anything she doesn't understand as "making no sense".
Source: Yahari Wiki