[Mizuho](https://anilist.co/character/2763)'s younger sister, whom she is very close to. She initially refused to accept the fact that [Kei](https://anilist.co/character/2908) is married to her, but she eventually warms up to him.

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: Anime News Network)

__Height:__ 146 cm

**Non anime roles:**
- Pichu and Togepi - Super Smash Bros. (Video Game)
- May - Guilty Gear (Video Game)


Kei and Mizuho are having some marital difficulties, and Mizuho's family decides it's high time for a visit.
 
(Source: Anime News Network)

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: Anime News Network) 
Note: 
-The title was never "- sensei," the Japanese characters phonetically spell "teacher". 
-The chapter count includes one extra chapter.

Maho Kazami