In the kingdom of Earlshide, Merlin Wolford was once regarded as a national hero, hailed for both his power and achievements. Preferring a quiet life however, he secludes himself deep in the rural woods, dedicating his time to raising an orphan that he saved. This orphan is Shin, a normal salaryman in modern-day Japan who was reincarnated into Merlin's world while still retaining his past memories. As the years pass, Shin displays unparalleled talent in both magic casting and martial arts, much to Merlin's constant amazement. On his 15th birthday, however, it becomes apparent that Shin only developed his combat skills and nothing else, leaving him with blatant social awkwardness, a lack of common sense, and a middling sense of responsibility. As a result, Shin enrolls in the kingdom's Magic Academy to hone his skills and mature among other teenagers. However, living a normal life is impossible, as he is established as a local celebrity almost as soon as he arrives. As Shin Wolford adjusts to his high school life in the capital, he makes new friends, learns about the world, and fights off the various forces of evil surrounding him and his city.

He is charming, cool, athletic, a good cook, but more importantly, he's a clean freak. Aoyama is idolized and respected by everyone, but they can only admire him from afar due to his mysophobia. Despite that, he plays soccer—a rather dirty sport! As the playmaker for Fujimi High School's soccer club, Aoyama avoids physical contact at all cost and cleanly dribbles toward victory. However, the path to Nationals will not be easy for Fujimi's underdog team. But alongside striker Kaoru Zaizen, Aoyama will show everyone that even as a clean freak, there are things he's willing to get dirty for.

A.D. 2087 - the United Lunar Empire Giganos wages war on the Earth Federation Military to take control of the planet and establish a rebirth of the human race. During an invasion of a colony by Giganos' forces, three civilian men stumble upon a trio of top-secret Metal Armor units called Dragonars and pilot them to combat the enemy forces.

After unknowingly participating in a kidnapping, college student Yuuya Nomoto finds his friends brutally murdered by Hitomi Uzaki, the high school girl they attempted to abduct. Forced to drive her to an undisclosed location, he finds himself being wagered as the prize for a death match between two Therianthropes, superpowered human-animal hybrids created through advanced gene therapy. As one of these hybrids, Hitomi uses the speed and fearlessness she gained from her ratel genes to viciously dispatch her foe and save Yuuya from certain death. Waking up hours later hoping the whole event was only a nightmare, Yuuya realizes that he has become embroiled in a secret proxy war between four large Japanese business conglomerates, with the winner taking control of the economy. As her sole albeit unwilling investor, his life is now directly linked to Hitomi's ability to participate in underground bloodsport matches known only as Killing Bites.