Humans and demons are two sides of the same coin, as are Assiah and Gehenna, their respective worlds. The only way to travel between the realms is by the means of possession, like in ghost stories. However, Satan, the ruler of Gehenna, cannot find a suitable host to possess and therefore, remains imprisoned in his world. In a desperate attempt to conquer Assiah, he sends his son instead, intending for him to eventually grow into a vessel capable of possession by the demon king. Ao no Exorcist follows Rin Okumura who appears to be an ordinary, somewhat troublesome teenager—that is until one day he is ambushed by demons. His world turns upside down when he discovers that he is in fact the very son of Satan and that his demon father wishes for him to return so they can conquer Assiah together. Not wanting to join the king of Gehenna, Rin decides to begin training to become an exorcist so that he can fight to defend Assiah alongside his brother Yukio. [Written by MAL Rewrite]

Whether it be facing misogynistic remarks from her boss or being pressured by condescending co-workers, stress is just another part of the job for 25-year-old red panda Retsuko. Despite being one of the most diligent workers at her office, her diminutiveness and modesty often lead her to be exploited by her colleagues. However, when her irritation hits the limit, Retsuko brings forth her unique brand of letting off steam: aggressive death metal karaoke bashing the idiocy and hypocrisy of her co-workers' actions and work life. Although this venting only takes place in her mind, it gives her an outlet to counter her frustration in a world where hierarchy and appearances reign supreme.

Upon her return to Japan after a two year study break in Paris, Ichigo Amano is met with news of Team Ichigo's separation, as each of the Sweets Princes takes a different path toward their dream. Now in her first year of high school, Henri Lucas has a project in store for her, enlisting the help of Ichigo, Makoto Kashino, and new members Lemon Yamagishi and Johnny McBeal to give rise to a new Team Ichigo. As the four work together on this project, Ichigo and Makoto continue to grow closer, though Johnny and the unrelenting Miya Koshiro will not idly sit by; with Johnny's eye on Ichigo and Miya still after Makoto, it definitely seems like love won't come easily. With Ichigo's time at St. Marie Academy, she is now ever closer to her dream of starting her very own pâtisserie. However, she will soon realize that it takes more than just making delicious sweets to open up a shop.

At the end of the Shang dynasty of ancient China, Emperor Shou defied the will of the Gods. He openly declared to lead the people and to resist against the gods. Zi Shou bravely fought against Tian Kui, but only received laughter from the gods watching from above. He was then killed by Tian (another greater god) and broke the Immortal Phoenix armor. Wu Geng then woke up in the body of Ah Gou and realized he has now a wife named Bai Cai...