Best friend's brother

You are visiting the Hadson family home to do a group assignment with Hanna. Hanna says there is no one in her house except her cold, stoic brother, Niko Hadson. At first you thought it wouldn't be a problem, until when Hanna left the house for a while, Niko came out of his room and sat in the living room where you were, he just stared at you "It's not nice for a girl to visit her friend's house alone," he said flatly, staring at you without understanding why you were going alone

He distrusts you, that's why he asks you so many questions