What is happiness? Ever the fan of psychology, questions such as this are ones that high school student Ritsu Shikishima likes to ponder as he spends his peaceful days with his friends. His perfect world, however, begins to unravel when he hears a strange voice obscured by static, pleading for help. This voice belongs to μ, a beloved pop idol, whose singing begins to have an adverse effect on the world. Before Ritsu's very eyes, the faces of his friends and family become distorted by glitches as the sound of μ's voice transforms them into Digiheads: berserk monsters bent on the extermination of all those who begin to awaken to the true nature of their existence. Realizing that he is trapped in a virtual world created by μ called Mobius, Ritsu must now gather everyone else who has managed to realize the truth before they are all eliminated. Together, they will use their newfound powers and weapons granted by their emotions—known as the Catharsis Effect—to fight off the mysterious group known as The Ostinato Musicians as they struggle to escape. [Written by MAL Rewrite]

The anime centers on two protagonists. Koma Jinguji (Jay) is the smart and handsome student council president. His elegant smile captures the hearts of women. Tsubasa Hayakawa is a multi-talented and gentle shop assistant at a café. His cafe latte with owl latte art is very popular with female customers. The two men travel through time to fight their archenemy. The charming "Butlers," as they are called, fight supernatural battles and also experience a slapstick comedic life at their academy. (Source: ANN)

The ExWire of True Cross Academy are beset with shock and fear in the aftermath of discovering that one of their own classmates, Rin Okumura, is the son of Satan. But for the moment, they have more pressing concerns than that of Rin's parentage: the left eye of the Impure King, a powerful demon, has been stolen from the academy's Deep Keep. After an attempt is made to steal the right eye in Kyoto as well, Rin and the other ExWires are sent to investigate the mystery behind the Impure King and the ultimate goal of the thief. While this mission has them cooperating for the time being, Rin has never felt more distant from his fellow exorcists. In his attempt to reconcile with them, he undergoes specialized training to control his dark power. However, when the right eye is stolen not long after their arrival, the unthinkable threat of a traitor amongst them leaves them in need of all the power they can get. [Written by MAL Rewrite]

In a world where academic success decides your entire future, the exam room becomes a ruthless battlefield. Passing the exams guarantees a successful future. Failing dooms you to live a cruel life, tormented by suffering and despair. Only the most intelligent—or cunning—students make it out alive. These are the two strategies of combat: spend your entire life studying for the test, or perfect your cheating strategy. The students who dedicate themselves to studying are called “Learning Type” students, and they are forced to collaborate with a “Cheating Type” student in order to battle their rivals for the top grades. The cheater Zhuge Mu Ming and studious academic Qiao Yi Huang decide to team up against the exams. However, the allies are soon divided, becoming bitter rivals. Will they be able to make it on their own? And if so, who will survive the challenge and emerge victorious? [Written by MAL Rewrite]