In Devil May Cry, Dante is a demon hunter, usually hired through his own business named "Devil May Cry".
In Seto no Hanayome, Nagasumi is saved from drowning by the mermaid San Seto, now he has to marry her or die.
In Kaze no Stigma, Kazuma Kannagi was defeated by Ayano for the right to be the successor of a powerful sword.
In Sola, Yorito decides to take a picture of the sunrise overlooking the bay, but is deterred when he meets a strange girl.
In Shinkyoku Soukai Polyphonica, humans rely on the miracles of fairies, in this world, they survive on the music played by humans.
In Darker than Black, an inscrutable and abnormal territory, known as Hell’s Gate, appeared and caused Tokyo to lose its original sky.
In GeGeGe no Kitarou, Kitarou is a youkai boy born in a cemetery, he is the last living member of the Ghost tribe.
In Claymore, despite saving humans on a regular basis, Claymores are often alienated from and feared by humans.
In Tokyo Majin Gakuen Kenpuchou Tou, people that are disappearing at night suddenly reappear during the day as a corpses.
In Venus Versus Virus, Sumire has the power to see ghosts since she was a small child, though no one believes her.
In Black Blood Brothers, during the Hong Kong Crusade, an Old Blood vampire fought and conquered.