The world of psychology is far from strange to the unusual Dr. Ichirou Irabu, a resident psychiatrist of Irabu General Hospital. He and his charming nurse Mayumi run through several patients, each suffering from a mental illness that harms their everyday life. Patients should be wary of the seductive Mayumi, with her spellbinding looks and devilishly short pink nurse uniform. On the other hand, the doctor seems to have three separate personalities: a child with an oversized lab coat; an intelligent, youthful man with feminine traits; and a selfish, outgoing green bear. While curing his patients in questionable ways, Dr. Irabu often tries to gain something from them outside of his profession—and in doing so, occasionally forgets his role as a doctor. As each patient struggles to face the nature of their distress, an obvious yet invisible thread ties their paths together.

Human beings can be divided into two kinds: ordinary people who work for the living, and the undead who work for the dead. For the undead, their lives are dedicated to fulfilling the final wishes of ghosts who died with regrets. As for Baili Dengfeng, he has one and only one destiny in this world: to find his long-missing wife Ruyan. During his quest, Dengfeng makes acquaintance with Jia Xuan, whose family was murdered and is yet to be avenged, Liang You who is cute, naughty and adores him very much, and Liang Yuan, who simply doubts everything neurotically. After a series of events, he also learns of the existence of Spirit Masters and Spirit Slaves, and gets in touch with a mystical organization named "Spirits Expelling Order". With more and more mysteries being unveiled, the truth is drawing closer and closer to Dengfeng, who perhaps would rather not face the whole of it.

Ura Ex, extra short anime included in Blu-ray and the DVD releases of Ao no Exorcist.

Yako Katsuragi is an acclaimed high school detective, who, despite her young age, has solved many cases. In fact, there seems to be no case that she can't solve, or any culprit that escapes justice. But within the walls of her detective agency lies the secret to her prolific crime-solving skills: the cases are actually solved by her assistant, Neuro Nougami. However, to call Neuro an ordinary man would be incorrect. In reality, he is a demon, who came to the human world in search of the ultimate mystery, having already solved every mystery in the demon world. With Yako as his proxy, he feasts on the negative energy released by humans when they commit crimes. Thus, he promises to help Yako solve the mystery of her father's death. But to do so, he must avoid drawing too much attention to himself, which is why Yako plays the role of the detective. Majin Tantei Nougami Neuro follows this unlikely duo as they solve case after case to satisfy Neuro's ravenous appetite and Yako's desperate search for the truth of her father's death.