Eleven-year-old Sara Werec's elder brother, Ralph, was sent to the frontlines of an interstellar war 130 light years away, and Sara vowed to reunite with him one day as a comrade. Five years later, Sara is a student at Grapera Space Armed Soldier Academy, training to become a Reasoner, a pilot of an advanced weapons system called a "Strain." When the academy is suddenly attacked by enemy forces, Sara enters battle against a Strain that quickly overpowers her. After incapacitating her, the pilot reveals himself to be her Ralph. Killing all the other students and destroying the school, he disappears, leaving Sara to question everything she has ever known. Soukou no Strain is the story of Sara as she reenters training under a new name, now determined to confront her brother and make sense of her brother's actions. [Written by MAL Rewrite]

After defeating Geese Howard, legendary fighter Terry Bogard faces German warrior Wolfgang Krauser, only to suffer a humiliating defeat. Depressed by his loss, Terry wanders around the country, wasting his life through drinking. Only a young boy named Tony can convince Terry to go back to his winning ways, conquer his fears, and once again face Krauser. (Source: ANN) Based on the Neo Geo SNK video game Fatal Fury 2.

Jeff Bogard was a master of the Hakkyokuseiken martial arts school and the guardian of its secret techniques. Coveting this knowledge, Geese Howard, the most powerful man in South Town, challenged and murdered him in front of his adoptive sons Terry and Andy Bogard. Under the guidance of their mentor Tung Fe Rue, the brothers dedicate their lives to training in the ultimate art to avenge their father. 10 years later, Geese promotes a martial arts tournament known as the King of Fighters. Terry and Andy join their friend Muay Thai champion Joe Higashi and enter the competition in order to finally face Geese in combat. [Written by MAL Rewrite]

Kai, who has powers different from the rest, together with his sickly sister Hikaru was protected by an organization called ASHURUM. Scouted by Eiji, Kai was delegated to the ASHURUM special force AESES and undergo intensive training. Whenever he was free, Kai visited Hikaru at the hospital belongs to the organization, but Hikaru's condition never improved. So, one year later, with amazing growth from the intensive training, Kai decides to escape from the organization. (Source: ANN)