In the backwater town of Bellforest lives a 14-year-old boy named Renton Thurston. He desires to leave his home behind and join the mercenary group known as Gekkostate, hoping to find some adventure to brighten up his mundane life. However, stuck between his grandfather's insistence to become a mechanic like him and the pressure of his deceased father's legacy, the only excitement Renton finds is in his pastime of riding the Trapar wave particles that are dispersed throughout the air, an activity akin to surfing. Everything changes when an unknown object crashes through Renton's garage, discovered to be a Light Finding Operation—a robot capable of riding the Trapar waves—specifically known as the Nirvash typeZERO. Its pilot is a young girl named Eureka, a member of the Gekkostate, who requests a tune-up for the Nirvash. Their meeting sparks the beginning of Renton's involvement with the Gekkostate as he takes off alongside Eureka as the co-pilot of the Nirvash.

Gunma Akagi, a teenager from the countryside, frequently causes a ruckus with his turbocharged tractor, much to the chagrin of his father, aspiring politician Souichirou Akagi, who urges the family to set a good example to ensure his success. One night, while Gunma is driving his tractor on the highway with his best friend Tamotsu Oishi, the two are suddenly overtaken by a speeding car. Gunma interprets this as a challenge and tries to outpace his opponent, only to fail in a spectacular fashion. The defeat sparks a fire within him, and Gunma becomes determined to win against this mysterious foe at all costs. Soon after, he leaves the peaceful countryside behind and moves to the bustling city, aiming to become the next Formula One star!

Once upon a time, fairies were tools of war. The story takes place in a world where fairies possess and dwell in animals, giving them mysterious abilities. By removing the organs of a possessed animal and transplanting them into humans, fairies can be summoned as an alter ego and be used as a weapon. Such individuals who used fairies as war tools were called Fairy Soldiers. Once the war was over and they completed their roles, the soldiers lost their purpose. Some began working for the government, some joined the mafia, and some even became terrorists, as each chose their own way to live. Nine years have passed since the war. The protagonist Mariya is a new recruit of Dorothea, an organization which investigates and suppresses fairy-related crimes. Amidst the unstable political situation, criminals with lingering wounds from the war and past conflicts emerge and engage in terrorism as an act of revenge. This is the story of Fairy Soldiers, fighting for their own justice in a chaotic postwar world. (Source: MAL News)

In a world where negative emotions fester, five fairies from the strongest clans are sent to Earth to collect attachment in order to sustain their world. The fairies establish Bar F and live their lives as normal high school boys and a barkeep in order to protect their true identities and fulfill their mission. The boys encounter various female clientele at Bar F, each hiding dark feelings within their hearts, and the boys offer to help them overcome their troubles. The only thing they ask for in return is the client's permission to steal their heart. As the boys investigate the cause of each client's distress, they come across an individual who wishes to sow chaos and sin. With their quest on the line, the fairies of Bar F must unmask this individual's identity and put a stop to their plans, all while holding true to themselves.