Blackstone Code - Chapter 31:

Only a pure maiden can have a privilege to make contract with a spirit.

In Areishia Acadamy, maidens from noble family were gathered there, giving them an elite education to become a spirit contractor. A boy Kamito, by accident he peeped on a girl, Clair, who was taking a bath, and he even made a contract with spirit that she wanted.

Kamito was actually an irregular male spirit contractor, which should not exist.

At the far north of the Atherno Continent, in an unknown village, Kyrian was born as a mere mortal. Weak, insignificant, and destined for oblivion.But he was anything but ordinary. Upon opening his eyes for the first time, they revealed an absolute white eyes without pupils or irises… and with them, an inexplicable innate talent.The ability to see what no one else could.His eyes didn’t just see the particles of spiritual energy, they could steal them. And more than that.Whether intentions, laws, concepts… everything before his vision could be taken by his eyes.When he stole his first Sword Intention, his eyes awakened to the path of the blade. Upon taking the Intention of Ice, another ocular pair was born.With every new stolen intention, his eyes changed, and new ones appeared.Kyrian does not hide them from the world, no, heeding his mother’s last wishes. He uses his gift without fear, with only one goal.To become strong by any means.

Amamiya Hiroto is unlucky. His life consisted of misfortune after misfortune, culminating in an unlucky death during an incident on a school boat trip, trying to save a girl he barely knew. After death, he met a god of reincarnation who requested that the hundred or so dead passengers—one of them being the girl he tried in vain to save—be reincarnated into another world.

It all started with a Book review…[To Kill A Demon Lord…] had everything; It had Magic, It had action, it had an abundance of interesting characters and—probably most important of all—it had Vampires.Kevin (Username: Kevin_The_Man) enjoyed the read. Stayed up to date with every chapter update and it quickly became his favorite Webnovel… That was until the Author killed off his favorite character, Caius Von Helsing, A Vampire Spawn who spent most of the story frustratingly resisting his Vampirism so as not to ‘become a Monster’.Kevin quickly wrote a review expressing his dissatisfaction so naturally, when the Author replied and asked for Kevin’s help in making a revised edition of the story, he quickly accepted…… Only to fall asleep and wake up in the world of [To Kill A Demon Lord…] as none other than his favorite character, Caius Von Helsing, the Vampire Spawn.Kevin—now Caius—quickly discovers that there is so much more involved in making a ‘revised edition’ of a novel than simply writing it. And that there are powerful forces that especially want Caius to die and stay dead…… But that death is still quite in the future so Kevin—now Caius—is quickly optimistic.He has a mission now;To enjoy the wonders this world has to offer—as the original character never would—by fully accepting and evolving his nature as a Vampire.