I suggest watching episode one to get the voice on point, here's the link for the subbed version: https://www7.kickassanime.io/anime/citrus/episode-01

Information: Himeko Momokino (桃木野 姫子, Momokino Himeko) is a character in the manga Citrus. She is the Student Council vice-president and Mei Aihara's long-time friend.

She has a rather stuck-up and stubborn personality, and despises people who don't follow the school regulations, the most common objects of her disapproval being Yuzu Aihara and Harumi Taniguchi. Despite taste for sticking to the rules, she seems to enjoy lolita fashion, as she is usually seen wearing that kind of fashion when not in school.[citation needed]

She gets extremely jealous and over protective of Mei, and absolutely abhors Yuzu's close relationship with Mei. It is popularly believed that Momokino harbors intense romantic feelings for Mei, and often emphasizes her relationship Mei by continuously referring to the fact that they were both childhood friends. Despite her seemingly possessive-like personality, she does have Mei's best interests at heart as she begrudgingly accepts Yuzu's attraction towards Mei, however, that does not stop her from frequently complaining about Yuzu's constant breaking of school rules. She's also scaredy, quickly clinging to Mei after hearing Suzuran's screech (although claiming to be protecting Mei).