Such a horrible premise.
First the story is bland and generic, i don't really get why is there a Comedy tag in MAL when from 5 episodes i haven't seen any comedy bit, or maybe they are just trying too hard because i haven't noticed. The concepts of the series were good at the first episode, they fell apart in episode 2 and so on, there's barely an introduction and the characters are dreadful.
The art is the best this show has (And it is still bad). the character design is generic like your typical school anime, and no one stands out from the others. You get your typical "yandere" girl followed by your typical shounen protagonist, then your typical tsundere "female dog" then your typical bad guys and that's about it. It's nothing from the other world, but it is certaintly better than most anime.
Character development is just horrible, disappointing. The protagonist is cold and has somthing hidden, well, not that that's new. But him not having a real personality is the problem, it has been used for the last 2 years and and it's just of the same, can't they do something else for a protagonist with no personality? This is too much. The female protagonist is a tsundere with no development, we don't know anything from her as well as the whole cast. At least a bit from the past wouldn't be so bad, to have an actual plot at least.
The Story makes no sense, they are dragging the whole mystery thing with the case for at least 3 episodes, is that really necessary? I get it, with 2 episodes its ok, you get the mystery in the first episode and the second its solved, but no, they are slow as a crap river. That aside, they have the clues right there yet they don't use them, again, the creator of this is trying way to hard to do something that's not worth it by this time.
Overall: 2