19 year old Minato Sahashi is living alone in a small apartment in Tokyo. He just failed the college entrance exam, for the second time, he is unemployed, and awkward around women. Despite having failed the exam twice, he is actually extremely intelligent; but his inability to cope under pressure results in constant failure. Not long after he finds out or failed the exam again, he meets Musubi, some girl who falls from the sky. She is a Sekirei, basically they have special powers, each unique. She is being pursued by 2 more Sekirei who emit lightning and use it to attack her. She grabs Minato and they manage to escape. Having no place to go, she stays at his place.
The next day, he wakes up and she’s sleeping next to him in his apartment. Musubi explains that she is looking for her “Ashikabi” and wonders if Minato could be hers. An Ashikabi is a human with special genes which allow them to form a sort of contract with a Sekirei, unleashing their full potential. After briefly explaining her situation to him, they go shopping for groceries. While they are our, they run into the two lightning sisters again. Minato tries to protect her and carries her to an alley; it isn’t long before they are discovered. Right before the sisters finish them off, Musubi kisses Minato and becomes his Sekirei. With her newfound strength, she manages to fend off their attackers, who retreat.
When they return to Minato’s apartment, Musubi begins making dinner. Suddenly, his TV turns on and Hiroto Minaka, the chairman and founder of the mysterious and powerful MBI Corporation, begins talking to Minato. Freaked out, he listens to what Minaka has to say. As it turns out, Minaka has organized a sort of ‘game’, also known as “The Sekirei Plan” where all of the Sekirei fight each other until there is only one left. Having gotten dragged into this ‘game’ and becoming an Ashikabi, Minato’s unsuccessful, boring life is about to become pretty hectic. But he soon learns that being the partner of a beautiful girl is not all fun and games, especially when he discovers that an Ashikabi can have more than one Sekirei partner— and that’s where the real trouble starts.
Overall, I’d say the show was pretty good. While they are short, there are two seasons and a possible third on the way. There is some decent action, and I laughed pretty hard a couple of times throughout the show; so it is worth watching.