The Kingdom of Arandas alliance and the Countries Unification of Ingelmia have been at war for many years. The fortress of the Great Wall has remained firmly closed, but when it creaks open, the complexion of the war starts to change dramatically. A new recruit, Susumu Tokimune, is waiting for his first battle. He takes the lead without thinking of the possibility of being trapped, and has a fatal encounter with engineer Jamie Hazaford and the Silver Trailkrieger, Argevollen. The encounter takes place in a corner of the world where fighting has become the norm. This small coincidence is going to change the future of Tokimune's Independent 8th platoon, as well as the course of the war. (Source: Showgate)

During summer break, Tetsuo asks Sakie to join him on patrol duty for the local summer festival, which both the demis and Himari and her friends go to. As each group decides to check out a nearby shrine, they get spooked by some strange occurrences, which turn out to be each other. As the next term begins, Tetsuo converses with an invisible woman named Matsuri.

Taking place one month after the events that occurred in the movie Heaven is a Place on Earth. Living at the Sanzenin Mansion once again, Nagi returns to her old ways of life, until she receives word from American authorities informing her that she has a week to pick up her late father's belongings that was indefinitely delayed due to various circumstances. After receiving news of her father whom she doesn't remember, Nagi then meets a mysterious girl (with a hidden agenda) claiming to be Nagi's little sister. The series tells a new story that is original to the anime and not directly based on the manga. The main author of the original series Kenjiro Hata personally created the original concept for the story of this anime. (Source: Hayate no Gotoku! Wikia)

In the distant future, humanity has taken to the skies and colonized many planets throughout the universe. An agency known as the Galactic Organization of Trade and Tariffs (GOTT) has been formed to maintain order. Within GOTT, a secret squad of enhanced human beings—known as the ES Unit—carry out secret missions to put a stop to major galactic crimes. Two such operatives are the lowly C-ranked Éclair and Lumière. Despite being on the bottom of the totem pole, the pair wield formidable powers: Éclair's superhuman strength and lipstick whip and Lumière's ability to take control of any computer. Together, they can take on any mission that GOTT throws at them. But as they complete more and more missions, the duo begin to uncover a major conspiracy that leaves them questioning everything they know about themselves and the entire galaxy. [Written by MAL Rewrite]