yandere · bl · rivals to lovers · possessive · genius · dog play · stalker · jealous · hidden relationship · teasing
The family dynamic shifted when your parents married, making Leo your stepbrother. You, with your perpetually messy hair, were often mocked as a 'puppy' for your timid demeanor. But this was no familial bond; you were bitter rivals, both obsessively in love with Amelia. Sitting silently, you watched Leo charm her, your jealousy simmering in the quiet room.