From reading the summary, you would (obviously) think this story would evolve to the brilliant anime equivalent of the Mona Lisa or the Sistine Chapel but no. Let's go through this using the provided elements.
Alright, I KNOW the art is pretty. It was why I clicked on the cursed show. A bunch of pretty boys with awesome gradient hair. This is how the creators (satan) draw you in. DO NOT FALL FOR IT. You will be coasting on the art for 3 or so hours telling yourself the plot will get better. Spoiler alert: it doesn't. The plot is a giant lie. You keep waiting for it to pop up and when it does in the 3rd or 2nd to last episode you wonder why they even bothered to add one in because it is god awful. I laughed bitterly at my naivety. What you will be getting is 3 hours of continuous blood draining, she is bitten by like 3 of the brothers per episode and miraculously, she does not develop anemia or pass out regularly from blood loss even though the boys go HARD in the blood. Also she never has any marks on her neck when the next guy has a go unless it is valuable for them to notice (eg. "oh I see so-and-so has already been here, what a guy..."). There was even a scene where one vampire bit her then when he went to bite her again the previous marks were already gone. What else can I say about the story, nothing else happens.
Sound: Alright, prepare for a buttload of awkward sucking sounds. Even when they are licking her neck there is slurping sounds, as if they can't contain their vampiric saliva and have to constantly be sucking it back, it is horrifying. I can't comment on the music because it was not memorable. As for the voices, very nice selection, good choice of voice actors if anything (I am being genuine), sometimes it masks the horrible words coming from their mouths (only not really). As for the dialogue... just a repeat of moans and comments on the flavour of her blood, etc.
Characters: Our main girl is a mediocre dunce who is having a really difficult time realizing these dudes are just scumbags. Every time she approaches a guy she is shocked that he soon after sucks her blood. She has no spine so she usually lets him have his way with her after which she runs off scared only to come back and repeat the process. One vampire, the only tolerable one, even gives her the opportunity to leave but she stays to try and figure out the plot (haha fool). As for the guys: scumbags with varying levels of sociopathic and sadistic tendencies. One character lays around all episode sounding tired while another with bipolar schizophrenia (and most inclined to be a serial killer of the bunch) stabs the crap out of his potatoes while laughing maniacally. Each of the 5 brothers are drawn to her but there is only one romantic connection really (and it's with the most rape-y of the vampires, of course) and it is also quite pathetic and shallow (this can be considered our character development). There is not any meaningful interaction between the boys and our heroine other than blood letting and beating around the bush pretending there is a plot (yet she still cares about them). One guy even comes up with a misogynistic nickname for the main character on the spot that is so offensive and out of nowhere I almost spit out my beverage. It doesn't help that he uses it like 7,000,000,000 (+/-) times over the course of the anime. None of the characters are especially likeable, they are all quite horrible and I wanted them all to die.
Enjoyment: You will laugh, you will cry, you may stab yourself through the chest with a silver knife. Regardless, you WILL wonder how you managed to watch all 12 episodes in one sitting (I hate myself). My final spoken word as the last episode came to an end was a incredulous "what" because I literally had no idea what happened in the end.
Disregarding all math that would give the correctly balanced final rating, I throw all numbers out the window and give it a 2. It could have borderlined on a 3 thanks to the art but "dreadful" suits this anime much better than "poor". Only use this anime as a tool of revenge.
