Mei Aihara
On the outside, Mei appears to have a cold and ruthless attitude towards her peers. She's obtained a stern and short-tempered personality from her father's abandonment of her. She is unable to communicate with her step-sister, Yuzu, normally and struggles to convey her feelings properly, this results in her often making frequent sexual advances towards Yuzu. Despite her behavior, on the inside, she is sensitive, lonely, and hides a heart that can be easily hurt. Her usually hard personality contrasts her emotional side, which manifests often. Mei struggles to understand Yuzu's optimistic and impulsive nature, as it harshly mirrors her pessimistic and measured one. As the series progresses, she slowly changes, becoming less-cold to Yuzu, and a bit more caring towards her. She still has a hard time being honest and understanding what she's feeling. She sometimes does childish things and likes teddy bears. She's more confident than Yuzu knowing the fact that not everyone will approve of their relationship. [Source: https://citrus.fandom.com/wiki/Mei_Aihara]