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.

Haruka Nogizaka is the most popular student in the prestigious Hakujo Academy, possessing unparalleled beauty, talent, and influence. Unbeknownst to her fellow students, however, she keeps an embarrassing secret of being an otaku—something that can potentially destroy her elegant reputation. Unfortunately for Haruka, an encounter with the timid Yuuto Ayase in the school library spells the end of her well-kept secret. However, the two reach a mutual agreement with Yuuto promising to keep Haruka's secret, sparking an unexpected friendship between them. Nonetheless, with Haruka's status as the school celebrity and her friendly relationship with Yuuto, both of them are bound to be the subject of gossip everywhere they go!

1. Funshitsu / Miko-san 2. Oshigoto / Henbou 3. Sentou / Service

Who cares about what happened in Japan's past? It has nothing to do with my life. With these words, carefree high school student Saburou finds himself unceremoniously thrown back in time to the Sengoku Era, landing directly in front of the legendary general Nobunaga Oda. Nobunaga, on the run from his retainers and wishing to rest due to his frailty, beseeches Saburou to take his place, as the two bear an uncanny resemblance. Although Saburou is still confused by his surroundings, Nobunaga hurriedly provides the boy with the necessary items to prove that he is the bona fide feudal lord and makes a hasty getaway. Now a stand-in for someone he doesn't even know all that much about—though his modern experiences and knowledge are sure to help him—Saburou begins his unexpected quest to pose as the man who attempted to unite all of Japan.