Mitsuya no Bara ni Kuchizuke wo
Holly Colette has snuck into the Granville Castle, but not maliciously. Quite the contrary, Holly Colette has snuck in because she wants to hand-deliver a letter to the man who saved her life. Holly spent a part of her childhood in the castle but has not been back since she left for school ten years earlier. Her memory is hazy, but... oh yes! This must be his room...! While waiting, Holly dozes off and... wakes up to her rescuer mistaking her for his bride!? Holly is about to learn the truth about the old castle and her savior, the mysterious Gideon Granville..! Female lead was abandoned as a kid. She was found and picked up by dilf-looking vampire, who raised her and then sent her to an all-girls school to protect her against other vampires.
Shibariya Komachi
Legend says that fated lovers are bound together by an invisible red thread. Most people think it's superstition, but seventeen-year-old Chiyako knows better -- she can see them! Yearning to be an independent adult, she's struggling to earn enough money to move out of her parents' house. Her path is clear, until a chance encounter with a mysterious group of hot guys known as the Tyers shows her that she has the power to pull all of fate's strings...though doing so binds her into the form of a child! Akeo's feelings for Chiko turn from "guardian" to romantic. I felt like there wasn't any transition between the two. I also feel that it's kind of weird that he develops romantic feelings towards someone he's been watching over (as an adult) since they were a small child - and I'm usually all for age-gap romances. To me, he seems more like a father/guardian figure rather than a love interest from his side at least.
Leash Me Up
Reality Lover
Koi wo Suru DNA +
This is included in the Finder series. Its the second volume.
Sugar Addiction
https://archive.org/search.php?query=Sugarholic&sin=
Risky Society: God Bless My Justice
This is the fifth chapter of the first volume in the Finder series.
50 Shades of Grey