another pair of green eyes

Eileen Lily Prince is a fourth-year Hufflepuff with a secret. Her beloved dad is one of Hogwarts's most hated and feared professors. Severus Snape.
She has to spend most of her time with her eyes glamoured to prevent anyone from recognising Lily Evans's prominent emerald eyes. To hear the comments made about her father and keep silent, or sometimes even join them to avert suspicion. To hide every time the Floo roars to life, in case one of Voldemort's servants steps out. To come up with excuses for spending quality time with her dad.
And, to be his confidant and loyal right-hand. From a very young age, she was considered part of the adult world - let in on dark secrets and consulted in conflicted situations. When Severus asks her to help him gain Harry's trust - Eileen is more than willing to help.
Little does she know, that help would bring her to the love of her life, a dreamy Ravenclaw witch in her year.