Kud Wafter is a spin-off of Key's earlier adult game Little Busters! Ecstasy, which itself is an expanded version of the original Little Busters! game rated for everyone. Kudryavka appears as a heroine in both Little Busters! and Ecstasy. Kud Wafter is an expansion of Kudryavka's story after the events of Ecstasy and is written by Chika Shirokiri. Na-Ga and Itaru Hinoue returned as co-art directors. A manga adaptation illustrated by Bakutendō began serialization in the May 2010 issue of ASCII Media Works' Dengeki G's Magazine.
Except where otherwise noted, text is available under the Creative Commons Attribution-ShareAlike License.