**Height:** 155 cm

Kei is living the life of a fifteen-year-old boy. He has a unique disease that causes his body to shut down into a death-like state whenever he becomes too stressed or depressed. He calls this a "standstill". The amount of time he remains in a standstill is random, usually lasting a few minutes to a few hours. However, one time, he went to a standstill and didn't come out for three years. So although everyone thinks he's 15, he is really 18. He discovers that his new teacher, [Mizuho Kazami](https://anilist.co/character/2763), is actually an alien whose mission is to observe Earth. Due to a big misunderstanding, Kei has to choose between letting her secret out or getting married to her. 

~!At first, he is hesitant about the whole ordeal, but eventually, he falls in love and what ensues are comedic and dramatic situations which he must overcome to live a happy life with his new wife.!~

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)

[Official Website](https://www.davewittenberg.com/)

David Richard Paul Wittenberg.  Born in Johannesburg, South Africa.  He was raised in Boston Massachusetts.   Lives in Los Angeles, California.

An italian voice actor and ADR director, mostly known for his roles as [Yuugi Mutou](https://anilist.co/character/1374/) and [Atem](https://anilist.co/character/1375/), [Rock Lee](https://anilist.co/character/306/), [Jaco](https://anilist.co/character/135959/) and [Yuuga Aoyama](https://anilist.co/character/127042/).

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

Maiku Kamishiro's past has always been somewhat of a mystery to him. The only clue he has to who is family might be is an old photograph showing two young children, a boy and a girl, playing in a small pool outside of a blue house. In an attempt to find his family, he moves to this blue house and begins working as a programmer. He's living a comfortable life until the day two very different girls show up at his door, both in possession of the same photograph, and both claiming to be his twin. With no way to prove who is a relative and who is a stranger, Maiku allows both girls to move in with him until they know for sure. 
(Source: Anime News Network)

Two weeks have passed since the dilemma between Maiku, Karen and Miina was resolved, but their lives are more hectic than ever. Karen has become possessed in her newly discovered brother and Miina is desperate for attention as well, which leaves little time for Maiku to concentrate on his work. Therefore he decides to head out in the woods and set up a camp, where he can be work in peace. But, as always, we have Morino who is up to no good. To make things a bit more interesting, she organizes a field trip to Maiku's camp site, and encourages everyone to make some good summer memories.

Maiku Kamishiro has a problem. Actually, make that two problems. He has two young girls boarding at his house, each claiming that they're his long-lost twin sister! Which one is Maiku's sister? Which one is a total stranger?

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.

Kei Kusanagi