[Hiatus] sᴜɢᴀᴡᴀʀᴀ's sɪsᴛᴇʀ?! (Haikyuu!! X Fem! Reader)

Sugawara (Y/N). Yes, that's your name. You're the younger sister of Sugawara Koushi but, both of you don't live together. Not because your parents divorce or something. You lived with your father in (C/N) because your father is a CEO of a famous company and a well known designer that make your father have to leave Ja...