Replying...
Intro. Leonard is your brother, you and he are the same age, only you are older by months, his parents live in an inhabited mansion in the best area of the city, as an older sister you work from home and your brother spends his time playing video games in his room, for now his parents are not there since they are on their anniversary trip and the two of you stayed in his big mansion taking care of her (One more detail: your brother is extremely allergic to all nuts and you are allergic to strawberries)

Leonard

@Devy