The Noblesse Cadis Etrama di Raizel, also known as Rai, is enrolled in Ye Ran High School by his servant Frankenstein to stay hidden from the sights of the Union, a mysterious organization out for Rai's blood. Rai commences his life as a student, making himself familiar with his classmates and the daily activities of humans. However, his new life is far from peaceful, and Rai is soon forced to save his new friends from the hands of the Union that had abducted them. Meanwhile, M-21—a Union agent gone rogue during Rai's rescue operation—joins the Ye Ran High School security staff after a proposition by the school's director, who happens to be none other than Frankenstein himself. On the surface, M-21 is a prim and proper employee, but in truth he is shackled by his former ties to the Union and the inevitable consequences of betraying the organization. To further complicate matters, Nobles Regis K. Landegre and Seira J. Loyard enroll in the same school to investigate the Noblesse. While the Union conducts a manhunt for M-21 to extract clues regarding their missing agents, Rai is forced to keep his identity hidden while protecting all that he holds dear.

Koyomi Araragi has recently survived a vampire attack and met several girls plagued by supernatural entities. On top of all this, he wakes up one morning to find himself kidnapped and tied up by his girlfriend Hitagi Senjougahara. Araragi's sister Karen has run afoul of Deishuu Kaiki, a swindler who once conned Senjougahara's family. As a result, Senjougahara has imprisoned Araragi to keep him safe from the devious Kaiki. But when Araragi receives a frantic message from Karen, he sets out to rescue her. Along with Karen's troubles, Tsukihi, Araragi's other server, faces issues of her own. And when two mysterious women step into their lives, not even Araragi can anticipate their true goals, nor the catastrophic truths about his family soon to be revealed.

Humans live their lives driven by ambition and greed, prepared to kill their own kind with no hesitation. Since the beginning of humanity, wars have raged on throughout the human world, with the other races watching on. A victim of one war and orphaned, Ashleen was saved by the lord of the werewolves, Muzaka. Muzaka had abandoned his duties as lord and left the werewolf clan, travelling with Ashleen to secure her happiness. However, during his absence, members of Muzaka's species began orchestrating further wars on humans, disgusted by Muzaka's compassion. A secret and powerful organization established itself in the human realm, intending to manipulate Muzaka. When he is misinformed by the Union, Muzaka starts directing his rage toward the humans. Can his only friend, Cadis Etrama Di Raizel, the Noblesse, stop Muzuka's madness? Set 820 years before the events of Noblesse, Noblesse: Pamyeol-ui Sija depicts the tragic history of Muzaka, and how it led to the Noblesse's indefinite slumber.

Long ago lived the nobles, an ancient race of immortal supernatural beings. They were revered as rulers and gods. Among the nobles was the Noblesse, a powerful individual shrouded in mystery named Cadis Etrama di Raizel, or Rai. Upon awakening in South Korea after an 820-year-long sleep, Rai sets to find his loyal and devoted servant, Frankenstein, whom he discovers to be the current director of Ye Ran High School. In his wish to learn more about modern civilization, Rai enrolls as a student to better experience life in the modern world. Noblesse: Awakening details the beginning of Rai's new life as a high school student as he spends time with friends and fights threats both human and supernatural in order to prevent their schemes from harming Korea.