Kei Kusanagi was your typical ordinary senior in High School. However his life became more complicated the day his class got a new teacher. On the outside she looked like your typical beautiful young school teacher, but Kei had witnessed her secret the night before. When exploring a strange light in a nearby forest the night before Kei discovers a mysterious floating woman. To his surprise she winds up being his new teacher and next door neighbor. Now can Kei balance the craziness of school life, his new neighbor, and the fact she’s an alien?