IM TERRIBLY SORRY, but if the goal was to implement some "show, don't tell", the opening scene with scribbles in a black void kinda fails at that... The MC is just yapping about his previous school and stuff, it really feels like you could cut half of the text there
I mean, i doubt that having a silent figure next to you that don't even trying to interact with you is more a reason to start monologuing than seeing your reflection in a mirror while taking a shower or talking to a photo. We also know that he's been seeing Scribbles in his dreams for months - does that mean he reads exposition every time, or this one time was special somehow?