Shinju Inui is a supporting character in the anime series 'Sono Bisque Doll wa Koi o Suru'. She is the younger sister of Sajuna Inui, who is also known by her cosplay alias, 'Juju'. Shinju is a shy and reserved middle school student with a passion for photography. She admires her sister's cosplay skills and often helps her with photoshoots. Despite her quiet demeanor, Shinju is deeply supportive and caring, showing a keen eye for detail in her photography, which plays a crucial role in capturing the essence of her sister's cosplays.