Onegai☆TeacherOnegai Teacher - Hayashiya, Shizuru

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.

(Source: ANN)

Onegai☆Teacher was published as Please Teacher! by ComicsOne from February 25, 2003 to June 17, 2003.