Otoha Kohinata

Happiness! (はぴねす!, Hapinesu!?) is a Japanese adult visual novel originally for the PC first released on October 21, 2005, and followed by the release of a fan-disk sequel Happiness! Re:Lucks on July 28, 2006. Both games were developed, produced, and published by Windmill. Later, a manga illustrated by Rino Fujii based on the games was created and first serialized in the first issue of the manga magazine Monthly Comic Alive on June 27, 2006. A light novel was first published by Harvest Shuppan in April 2006, and so far three volumes have been released. An anime based on the games began airing in Japan on October 5, 2006, with all the adult content removed. Happiness! was also ported to the PlayStation2 as Happiness! De:Luxe on January 25, 2007 with the adult content removed; a special OVA episode of the Happiness! anime was released with the limited edition of this game. The PS2 port will be published by Marvelous Interactive. The series has the tagline: It's a happy & heartful school life.

Source: Wikipedia