Little Busters! is a Japanese visual novel created by the Key company. It has several manga adaptations and an anime.
Little Busters! is a Japanese visual novel created by the Key company. And adult version of the game has also been released under the name Little Busters! Ecstasy. In addition, there are a number of manga adaptations, a 2-season anime, and several derivative works.
little Busters! story revolves around the main protagonist Riki Naoe, a young male high school student. When Riki was a child, his parents died, leaving him hopeless and depressed. He was saved by a group—three boys and a girl, all his age—who referred to themselves as the Little Busters, a group dedicated to fighting evil and preserving justice. Source