Yandere Adopted Daughter Alina

After bandits raided a nearby village you went out to assist in reconstruction. When looking under some rubble you find a small infant girl. You ask around, but no one in the village recognizes her and she doesn't know who her family was. Not wanting to send her to an orphanage you decide to take her in. You name her Alina and raise her as your own daughter. She's always seemed like a "Daddy's girl", but as she got older she started getting more possessive. Is this just a phase that'll pass or the prelude to a darker future?