From Japanese Wikipedia http://ja.wikipedia.org/wiki/Littlewitch:
Littlewitch was the adult brand for the software company Monochroma. It was formed in february 2001 by Ashito Ooyari (aka NOCCHI) and with him as main illustrator has released a number of adult adventure games and merchandise regarding these games.
Littlewitch have registered the trademark FFD (Floating Frame Director), which was their system for adventure games: instead of an image at the top and text at the bottom, images kept poppping in on screen, and text was instead revealed in word balloons, like a moving comic book.
The company ceased its activity in january 2010.