If you're looking for manga similar to Seven Mortal Sins: Tsumi no Kokuhaku Dennou Grimoire!, you might like these titles.
Saki-chan is a beautiful young woman and just a little naive. She may seem harmless as she wanders the streets, but beware–she’s a brand-new succubus who thrives on the lust of men! She’s just…not very good at it yet. When she finds herself with an opportunity to move in with a 30-something man who’s never slept with a woman before, she takes it, just like she’ll take him! Er, eventually.
An exemplary highschool boy, Amane Hibiki has a secret that he can’t let anyone know. That is—every night, he dreams of raunchy dreams about the strict class representative. One day, he meets the popular idol Mitsume Ren. In actuality, Ren was a succubus which fed on the wet dreams of people, and that Hibiki’s dreams was apparent equivalent to a full course for her. Following so, they came to an agreement and begin living together…!? This is the story of Amane Hibiki as he wishes for an ordinary life, while being approached proactively by a slightly succubus who’s uninhibited but delicate, and kind yet forceful, at the same time flirting with the cool beauty Rakujou Kanade and trying to be her support.
Narrates the story of Kyuuki, a strong, proud fox demon who recently woke up and needs a host and Kamishiro Shin, a normal would be high school student if it wouldn't be for "his ability" and for the fact that he got a hold of the black Grimoire that controls Kyuuki's existence. Shin is bound to the book as long as he is alive, thus not only he can't sever his connection to Kyuuki; but those who want the book's power are bound to come after his hide regardless of time and place.
The era for Black Gyarus is over, the Blue Gyaru is in!!! This is the tale of a brilliant but reviled celestial and a dim-witted though gorgeous demoness in the Heavenly Academy.
Amidst strange vampire-like murders in the community, Hajime has had a dream of a hot female demon called Satan that is lusting after his blood. Soon enough, she appears in his waking life, along with her alter ego Lucifer. After an embarrassing situation at school, Hajime and the shrine twins end up taking Satan/Lucifer into their home. Why are these demons attracted to Hajime, and what do they really want?