Kusanagi Kei, a high-school student living with his aunt and uncle, has an encounter with a female alien. This alien is revealed to be a new teacher at his school. Later, he is forced to marry this alien to preserve her secrets. From there, various romantically-inclined problems crop up repeatedly.
![Fate/stay night [Unlimited Blade Works]](https://image.tmdb.org/t/p/w342/jyqi5BkDoKKIA2WAoz3HBtRHld3.jpg)
