The story revolves around a highschool boy named Niwa Makoto. He lives with his aunt's family since his parents are away on business. It is there where he meets his mysterious cousin of the same age Touwa Erio — who happens to tie a futon mattress around her upper body and is a self-proclaimed alien. Her staple food is pizza. Erio had been missing for half a year and was found floating in the sea. She doesn't remember anything about what happened during that period of time, but she began to think that it was the act of an alien and wanders the neighbourhood wrapped in the futon.

At Hekiyo Academy, all but one of the Student Council members are elected via popularity contests, and those seats are filled by the school's most beautiful girls! The lines between fact and fiction disappear at the STUDENT COUNCIL'S DISCRETION!

Mini 4WD racing is an interesting hobby in where kids and adults compete using customized motorized miniature cars. Every year, competitions revolving around the hobby circulated around the world, with both kids and adults test out their spirit and passion in racing and companies developing new technologies and innovations for Mini 4WD. The story revolves around the competitive Seiba Brothers: Go and Retsu, who were once constantly arguing on each other to see who's the best racer. However one day after a community-sponsored race, they both met Dr. Tsuchiya, the head of the Tsuchiya Racing Factory who gave them two Mini 4WD Cars of the prototype Saber Series: Sonic Saber and Magnum Saber. With his advice on telling the twins to customize them for the upcoming race, they are now determined to win and race to victory and set off to their wildest race of their lives. While meeting both friends and enemies in the Mini 4WD Racing world.