Sadistic Night's Pleasure 《 サディスティック夜の喜び》

"I felt something weird as Mitsuo smirked at me, showing his canine teeth. It was long and sharp. It kind of terrified me. I moved a little back until I felt someone behind me was wrapping his strong arms around my waist. I turned around and my eyes widened. It was Mitsuo. 'How did he...?!'
"Surprised? I like that face of yours..." He whispered to my ear. I felt his hot breaths touching my earlobe. Out of nowhere, he licked the crook of my neck and smirked at me amused by my blush. "You seem to enjoy this, Misaki." "L-let me go...!" I yelled trying to squirm away, but it was no good. Mitsuo's purple eyes shined and smirked. He opened his mouth revealing two long and sharp canine teeth. Without any mercy, he sank his canine teeth on the crook my neck..."

Shizuka Misaki was enrolled in to Kiriya Private High school by her brother, Masaki. Something starts to become weird. The lodge (which look like a big mansion) she has to live was filled with five handsome idols! That's not the only thing, those guys were all sadistic vampires. Everyday, Misaki had a blood losing time which was a pain for her, but to them, it is a pleasure. They get interested on her more each day.
Will she accept one of them?