Papa no Iukoto wo Kikinasai!: Sorairo no Hibiki
パパのいうことを聞きなさい! 〜空色の響き〜
Sora is the oldest of three sisters and a second-year middle school student. At 14 years old, she often speaks to Yuuta using the term "older brother." Her academic performance is decent, though she lacks skill in cooking. Her personality is characterized by a tsundere disposition. This story serves as a prequel to the main series, focusing on events that occurred before its beginning.