Kouki Harasawa

Tucked in the mountains near the elite Kunugigaoka Middle School lies a small derelict building that houses the delinquents and dropouts of Class 3-E. Looked down upon by their peers, the students in this class appear to have little hope in advancing their academic careers. That is, until the national government tasks them with eliminating the greatest threat to their planet: their new teacher. Having already destroyed the moon, the octopus-like professor—dubbed "Koro-sensei"—has now threatened to destroy the Earth by March of the following year. In light of their mission, the students have found that killing him is easier said than done. Not only can Koro-sensei move at speeds of up to Mach 20, but he can also resist almost every earthly weapon. Ironically, he also proves to be one of the best teachers Class 3-E has ever had. Training the class to excel in both their studies as students and skills as assassins, Koro-sensei is confident that his students' ingenuity and indomitable will could return them to the main campus. Through trial and error, Nagisa Shiota, as well as the other students of Class 3-E, must figure out Koro-sensei's weaknesses—and fast, for the very fate of the world depends upon it. [Written by MAL Rewrite]

Disguising themselves as humans, homunculi inhabit the world to prey on the unsuspecting population. Created long ago by alchemists from Europe, homunculi are difficult to eliminate without weapons known as Kurogane. Each Kurogane is uniquely shaped according to its wielder's instincts, taking the form of special abilities called Busou Renkin. While walking home from school one day, Kazuki Mutou spots a defenseless girl under attack by a homunculus. But as he attempts to intervene, the girl ends up saving Kazuki’s life instead, shattering his ignorant worldview. The girl introduces herself as Tokiko Tsumura, and Kazuki soon learns that she has accidentally implanted a Kurogane inside of him. Now unintentionally dragged into the fight against homunculi, Kazuki must forgo his former life of leisure in order to protect the ones he holds dear. [Written by MAL Rewrite]

The ordinary life of high school student Ayato Kamina is turned upside down when Tokyo is suddenly invaded by futuristic fighter jets. Amidst the chaos, he encounters a woman called Haruka Shitow who claims to be from a government organization called TERRA. She reveals that he has been living in a time bubble named "Tokyo Jupiter" that was put in place by the Mulians—humanoids from another dimension—in an attempt to isolate and take over Tokyo. TERRA has been trying to break through the barrier surrounding the city ever since. Unable to process the revelation, Ayato panics and flees. He runs into his classmate Reika Mishima who leads him to a place called "The Shrine of Xephon" where a large egg slumbers. She starts to sing and an unknown power awakens within Ayato, connecting him to a being called RahXephon that breaks out of the egg. Shortly after, Haruka finds him again and tries to make him join her cause of fighting against the Mulians. Caught between the crosshairs of the Mulians and TERRA, Ayato begins to question his purpose, navigating altered memories and ultimately his very identity in this chaotic new world. [Written by MAL Rewrite]

Ren Fujii is a normal student who just had a fistfight with his former best friend, leading him to break off their friendship. But with the help of his childhood friend, Kasumi Ayase, and upperclassman, Rea Himuro, he's gradually returning to his normal school life. Then a series of brutal murders in which the victims are decapitated begins to strike their city. Strangely, at the same time, Ren starts to have terrifying nightmares of being beheaded by a guillotine. But these are just a prelude to the painful and terrifying battles to come. (Source: Crunchyroll)

Ayumi Mamiya is a witch cursed to lose her powers and only one boy can break the spell. Haruo Yoshikawa thinks he is a normal boy but unknown to him his three sisters have magical powers and keep him protected and ignorant about the existence of magic. Now Ayumi must wake up Haruo's latent powers to save herself but his sisters will have none of that. (Source: ANN)

A great war occurred in the 20th century between humans and monsters. Since that time, the monsters rule the world in fear but keep relatively hidden from public view. A boy named Bokka ponders the past and wonders what became of the Meros Warriors who defended the world so bravely against the demons. He soon meets Kurofune and learns of the power of the Meros and the I-bar machines they ride in battle. Warriors are the only ones who can see and hear the Melody of Oblivion, a phantom girl hidden away waiting to be rescued and be the savior of mankind. During a battle between Kurofune and a demon, Bokka discovers something only his wildest dreams could possibly imagine...he too can hear that melody. Throughout his journeys, Bokka meets many monsters and their agents, friends, and companions as he discovers the true extent of his new powers. He must continue to battle evil in the hope of releasing Boukyaku no Senritsu and free a world that has forgotten its once beautiful melody. (Source: ANN)