I like the concept a lot, and the art is nice (I like the style of drawing hair) but the characters so far don't seem to be very complex or realistic. This is a problem since the entire story is driven by how the characters play off each others' actions. The main characters is pretty relatable and believable even if he doesn't do much or have very complex emotions, (hey, he's a teenager) but his stalker doesn't make a lot of sense, (if she's the popular girl, why didn't she just tell him she liked him? She's obviously not shy about it. Stalkers stalk from a lack of confidence..) and so far none of the other players in the game have shown any fear or insecurity, even though they're in exactly the same position as the main kid. They are very flat characters, mostly portrayed as simple enemies.
Also, the diaries. When do they get written? Come on, don't say it's their future selves if they don't ever end up doing it. Sloppy writing. (Plus why are they all phones? Doesn't anyone write on paper?)
I'll change this review if these things change, but it doesn't seem like they're going to.