迪亚斯是个孤儿，但他却在战场上屡立战功，被誉为“救国英雄”。国王赐予他一块领地作为奖励。然而当他抵达时，却发现这片领地偏僻荒凉，人烟稀少，食物匮乏。这时，迪亚斯遇到了一位名叫阿尔娜的鬼人族女孩，她的额头上长著一根蓝色的角。阿尔娜带领迪亚斯来到了她族人居住的村庄。身为领主，迪亚斯决定尽其所能治理好自己的领地。

Meet Sasaki, an overworked, middle-aged office worker. His days are marked only by the passing of more unrewarding corporate drudgery. Smoking helps take the edge off, but other than that, the only bright spot of his day is when he goes to the nearby supermarket and sees Yamada's smiling face. So, one evening after yet another exhausting day, he heads to the supermarket to find he missed Yamada's shift. Dejected, he decides to go find a smoking area but discovers there isn’t one to be found. Just as he’s about to leave, a girl in a biker jacket named Tayama asks him to join her at a secret smoking area!

Sakuya Otsuki is the son of a legendary detective, following in his father's footsteps with his assistant, Lilithea. However, something's different about this high-school sleuth. Wherever he goes, he always manages to get himself entangled in his cases—as a murder victim. When Sakuya is tasked to infiltrate a luxury cruise ship, he finds himself killed once again. But every time he reopens his eyes, Lilithea is there by his side, ready to help him get to the bottom of the mystery…