Kisara is a supporting character in the anime With You, Our Love Will Make it Through. She is a beastfolk who takes after a cat, making her distinct from the canine beastfolk characters seen earlier in the story. Her physical design is intended to be appealing, and as a cat-type, her tail movements are a notable trait. She is fifteen years old.

Kisara is introduced as a childhood friend of the male protagonist, Tsunagu Hidaka, and has grown up alongside him in the beastfolk community. She harbors a deep romantic crush on him, a feeling that goes beyond simple friendship. Her personality is initially defined by this unrequited love, manifesting as a hot-headed and impulsive nature. When she first meets the human female lead, Mari Asaka, Kisara reacts with immediate jealousy and hostility, particularly because she can smell Tsunagu's scent on Mari, which signifies their growing intimacy.

Despite her aggressive first impression, Kisara is not a malicious person. She possesses a degree of self-awareness, feeling genuine regret and lamenting her own cruel behavior after lashing out in the heat of the moment. Her primary motivation is a protective instinct over Tsunagu, though she eventually acknowledges that her fierce opposition to his relationship with Mari is fueled by her own jealousy and desire to be with him. She initially argues that a relationship between a human and a beastfolk is impossible, reflecting the societal prejudices of her world, but her personal feelings are the true driver of her conflict.

Kisara’s role in the story is to act as a catalyst for drama in the central romance. She represents an obstacle from Tsunagu’s past that Mari must navigate. However, her character development is rapid. After a confrontation with Mari, during which the human girl demonstrates her sincerity and resolve by protecting Kisara from thugs, the cat-girl has a significant change of heart. She apologizes for her past behavior and becomes a vocal supporter of Tsunagu and Mari’s relationship, even going so far as to threaten Tsunagu that she might "steal him away" if he stops showing Mari affection.

Following her acceptance of Mari, Kisara evolves into a supportive friend. She takes Mari shopping for a new hair accessory and offers her advice on her relationship, showing a more thoughtful and caring side. Her key relationships ultimately center on Tsunagu, as a beloved childhood friend she must learn to let go of, and Mari, as a rival who becomes a cherished friend. Her notable abilities are tied to her nature as a feline beastfolk; beyond physical traits like agility, she can use her tail as a practical tool, such as offering it to Mari as a hand warmer in a gesture of comfort.