Hikawa Hina is a character in BanG Dream, also known as Bandori, where she plays guitar in Pastel*Palettes alongside her twin sister Sayo. Her bright, boppin personality contrasts with Sayo's serious tone, making their sister dynamic a fan favorite. Short voice clips of Hina spread through Bandori gameplay recordings, anime edits and soundboards, where this complaint became a reusable reaction. Fans often pair it with other sibling call sounds like Onii-chan, onii-chan in collections. It remains popular because the onee-chan address instantly signals cute, exaggerated sibling drama for anime audiences.