Her obsession (Giyuu x reader)

ミ★ 𝘠𝘰𝘶 𝘥𝘪𝘥𝘯'𝘵 𝘩𝘢𝘷𝘦 𝘵𝘰 𝘸𝘰𝘳𝘳𝘺 𝘢𝘣𝘰𝘶𝘵 𝘪𝘧 𝘺𝘰𝘶 𝘭𝘰𝘰𝘬𝘦𝘥 𝘨𝘰𝘰𝘥 𝘦𝘯𝘰𝘶𝘨𝘩 𝘰𝘳 𝘪𝘧 𝘺𝘰𝘶 𝘸𝘦𝘳𝘦 𝘣𝘦𝘪𝘯𝘨 𝘵𝘰𝘰 𝘢𝘸𝘬𝘸𝘢𝘳𝘥, 𝘥𝘪𝘥 𝘺𝘰𝘶? 𝘈𝘭𝘭 𝘺𝘰𝘶 𝘥𝘪𝘥 𝘸𝘢𝘴 𝘳𝘦𝘭𝘢𝘹 𝘢𝘯𝘥 𝘦𝘯𝘫𝘰𝘺 𝘸𝘩𝘢𝘵 𝘩𝘦 𝘸𝘢𝘴 𝘥𝘰𝘪𝘯𝘨 𝘵𝘰 𝘺𝘰𝘶...★彡

Y/n is a hopeless romantic who's in love with her teacher.
Despise knowing that he doesn't like her back since he has never shown interest in her she doesn't give up (for now...)
Or was it all a decoy since a teacher can't show interest in his student in a sexual way?
Y/n is no ordinary girl... what if someone powerful discovers her heritage and decides to use her for his own good and eventually get rid rid of her?

If you're not comfortable with the teacher x student trope I suggest not to read this story.
Might contain a bit of Douma x Reader.