Aoi Shida

Aoi is the third of the four Shida sisters and shares a twin bond with her younger sister Akane. As a first-year middle schooler, she stands out among her siblings for her exceptionally feminine nature and gentle disposition. Her hobbies include sewing and indulging in all kinds of sweets. Despite her young age, Aoi possesses a remarkably mature outlook and sharp intuition that surpass her years. Whenever the protagonist Sueharu finds himself troubled or at a crossroads, she offers insightful and objective advice, affectionately addressing him by the nickname "Sue-nii."