Mizuho Kazami – Orchid Seed Version
Mizuho Kusanagi (Nee Kazami), a 23 (as alien physiology is only hinted at, and growth rates may be different for the un-named alien species she is partly derived from) year old half alien, half human, Class C Planet Inspector from the Galactic Federation, sent to delta DES 8228 (Earth) to observe and study humans.
Source: Please Teacher Wiki
Manufacturer: Orchid Seed
Producer: Nekomaru (nekohouse)
Original: Onegai Teacher!
Release Date: Early Nov., 2008
Sales Price: 5,829 yen about 52.85 USD