Description:

When a mysterious creature chops the moon down to a permanent crescent, the students of class 3-E of Kunugigaoka Middle School find themselves confronted with an enormous task: assassinate the creature responsible for the disaster before Earth suffers a similar fate. However, the monster, dubbed Koro-sensei (the indestructible teacher), is able to fly at speeds of up to Mach 20, which he demonstrates freely, leaving any attempt to subdue him in his extraterrestrial dust. Furthermore, the misfits of 3-E soon find that the strange, tentacled beast is more than just indomitable—he is the best teacher they have ever had! Adapted from the humorous hit manga by Yuusei Matsui, Ansatsu Kyoushitsu tells the story of these junior high pupils as they polish their assassination skills and grow in order to stand strong against the oppressive school system, their own life problems, and one day, Koro-sensei. (Source: MAL Rewrite)

Description:

All of a sudden, they arrived: parasitic aliens that descended upon Earth and quickly infiltrated humanity by burrowing into the brains of vulnerable targets. These insatiable beings acquire full control of their host and are able to morph into a variety of forms in order to feed on unsuspecting prey. Sixteen-year-old high school student Shinichi Izumi falls victim to one of these parasites, but it fails to take over his brain, ending up in his right hand instead. Unable to relocate, the parasite, now named Migi, has no choice but to rely on Shinichi in order to stay alive. Thus, the pair is forced into an uneasy coexistence and must defend themselves from hostile parasites that hope to eradicate this new threat to their species. (Source: MAL Rewrite)

Description:

Years ago, all of the ghosts in a haunted schoolhouse were banished by a certain student. Now, they're back—and they want revenge... Satsuki and Keiichirou Miyanoshita are two siblings recovering from the tragic loss of their mother. After moving to their mother's hometown, they learn that the local school they have transferred to is an old building—one said to be haunted. Despite initially brushing it off as a silly rumor, the two soon discover that ghosts are indeed real and that they're after them! Gakkou no Kaidan is the creepy tale of the lives of these siblings and their newfound friends as they try to survive the school's ghosts—with a little help from their pet cat along the way. [Written by MAL Rewrite]

Description:

Nearly twenty years into the 21st century, people have forgotten the existence of Yokai. When a number of unexplainable phenomena plague adults of the human world with confusion and chaos, thirteen-year-old Mana writes a letter to the Yokai Post in search of answers, only to be greeted by Ge Ge Ge no Kitaro... (Source: Crunchyroll)

Description:

Reiko Mikami runs a business known as GS (Ghost Sweeper) Mikami, where she exorcises any evil that is bothering people. Her assistant, Tadao, only works for Reiko to see her nude one day. Too bad he isn't getting paid much for his job anyway. Later, Reiko and Tadao meet a spirit named Oniku who comes to help them in solving the mysteries of the supernatural. (Source: AnimeNfo)