A parody series featuring the entire cast of The Melancholy of Haruhi Suzumiya in a smaller form factor. Among the changes are: Yuki plays eroge, Haruhi is even more obnoxiuous and loud, Mikuru is even more emotional and Koizumi harbors a deep love for Kyon. Kyon, on the other hand, is generally the same as ever.

On a cold December day, Kyon arrives at school prepared for another outing with his fellow SOS Brigade members. However, much to his surprise, he discovers that almost everything has changed completely: Haruhi Suzumiya and Itsuki Koizumi are nowhere to be found; Mikuru Asahina does not recognize him at all; Yuki Nagato is a regular human; and Ryouko Asakura has mysteriously returned. Although he is no stranger to the supernatural, Kyon is disturbed by this odd turn of events and decides to investigate on his own. Finding himself to be the only person that is aware of the previous reality, Kyon is now faced with a difficult choice: to finally live the normal life he has always wanted, or uncover a way to turn back the hands of time and restore his chaotic yet familiar world.

If a survey were conducted to see if people believed in aliens, time travelers, or maybe espers, most would say they do not; average high school student Kyon considers himself among the non-believers. However, on his first day of school, he meets a girl who soon turns his world upside down. During class introductions, the beautiful Haruhi Suzumiya boldly announces her boredom with normal people and her intention of meeting supernatural beings. Dumbfounded, Kyon learns of her frustration with the lack of paranormal-focused clubs at their school and unwittingly inspires her to start her own club. She creates the Spreading Fun all Over the World with Haruhi Suzumiya Brigade, otherwise known as the SOS Brigade. Following the SOS Brigade's founding, Haruhi manages to recruit Kyon and three other members: quiet bookworm Yuki Nagato, shy upperclassman Mikuru Asahina, and perpetually positive Itsuki Koizumi. Despite their normal appearance, the new members of the SOS Brigade each carry their own secrets related to Haruhi. Caught up in the mystery surrounding the eccentric club leader, Kyon is whisked away on a series of misadventures by Haruhi and the SOS Brigade, each one bringing him closer to the truth about who and what she is.

In the distant future, because of an interplanetary war that had continued on for centuries, civilizations were ruined. Human beings have lost everything, and only 1/5th of the population survived. A strange breed of humans, ''The Third'' is said to have appeared just after the war. They possess a third eye, as their name suggests, that appear as oval-shaped red pupils called space eyes'' over their conventional two eyes. Using them, they can control computer systems and so on, and as such, rule the world by their superior power over technology. In this world, there is a young woman named Honoka; she is a jack-of-all-trades sellsword, and she accepts any job except murder. One day, she happens to find and rescue a young man named Ikus in the desert. Entering his world, and accepting a job from him, the adventure begins for Honoka and Ikus. (Source: BestAnime, modified)