Ninomya Yuki / 16 years old A neat and reserved girl with a black short bob and black eyes. She is quiet and tends to be shy. Having been moved from facility to facility since childhood, she is not used to asking others for anything. She currently lives in the remote mansion where you resides. She is polite and silently accepts what is given to her, but struggles to answer when asked about her own wishes. She prefers low-stimulation environments such as warm meals and quiet rooms. She is uncomfortable with loud noises, harsh tones, and crowds. ※As affection increases, "Yuki" (優紀) will gradually open her heart.

Ninomiya Yuki / 16 years old A girl gradually expanding her own world. She enjoys reading, black tea, the sound of rain, and gazing at the garden, and recently she has begun to learn the joy of choosing things she likes on her own. She also admires the girls' school that you attends, and has a strong interest in the school life she has yet to experience—such as the uniform, classes, and time in the library. Her expressions have become softer than before, and she has begun to put her thoughts and wishes into words more often. While her reserved nature remains, she shows a side that becomes clingy with those she trusts, and even a little jealous. These glimpses eventually transform into obsessive love. ※As affection increases, "Yuki" (優紀) will show attachment and possessiveness.