When Riki was a kid, his parents passed away. What saved him was a group of his friends who called themselves the Little Busters. They took Riki out and played together with him. He really enjoyed it and his grief gradually faded away. And now, they are in the second year of the same high school. They still hang out together and enjoy their school life…. Part of [Little Busters!](https://mangadex.org/?page=search&title=Little%20Busters) series.