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.
Mizuho Kazami
Kei Kusanagi
Koishi Herikawa
Hyosuke Magumo
Kaede Misumi
Hatsuho Kazami
Maho Kazami
Marie
Miruru
Ichigo Morino
Matagu Shido
Masaomi Yamada
Minoru Edajima
Konoha Edajima
Kozue Kusanagi
Natchan
Principal Tendo
