When I was young, I used to watch Diabloik Lovers the Anime. I didn`t like it because the main heroine was STUPID AS HELL and I realised that this "franchise"(?) was build for 12-old young girls which are sexually mad for vampires and vampire bites. But...Yeah, I read Diabolik Lovers Anthology. I don`t know why but I read it. The whole manga is a bit better that the anime, it`s like a book spin-off(?). The main heroine acts not so stupid than in anime, I was even surprised that Yui is much better in OG visual novel game and in manga, she has much more personality there.The other characters are as usual as always but a bit better. The art of the manga is poor, but it didn`t hurt my eyes at all. The manga doesn`t have the main plot, there are separated stories of main heroine with each vampire.
The manga is fine, I guess.
If you are the DL fan but you don`t like how the main heroine acts like and you think about holes in anime plot, you can read it, iif you want. This manga is only for "one time" - not good and not so bad))