
Kudryavka has her story expanded upon than what was seen in Ecstasy, which was itself an expansion on the story featured in Little Busters!. Kud Wafter's story revolves around Riki Naoe ( 直枝 理樹, Naoe Riki, voiced by: Tomoe Tamiyasu (epilogue only)), the male protagonist from Little Busters! and Little Busters! Ecstasy, and Kudryavka Noumi ( 能美 クドリャフカ, Nōmi Kudoryafuka, voiced by: Miyako Suzuta), one of the main heroines of the same games and the title character of Kud Wafter. See also: List of Little Busters! characters A 51-minute theatrical anime adaptation by J.C.Staff premiered on July 16, 2021. A manga adaptation illustrated by Bakutendō was serialized in ASCII Media Works' Dengeki G's Magazine. The game ranked as the best-selling PC game sold in Japan for the time of its release. Na-Ga and Itaru Hinoue returned as co-art directors.

Kud Wafter is an expansion of Kudryavka's story after the events of Ecstasy and is written by Chika Shirokiri. Kudryavka appears as a heroine in both Little Busters! and Ecstasy. The game is a spin-off of Key's earlier game Little Busters! rated for all ages and its expanded, adult version Little Busters! Ecstasy. The gameplay in Kud Wafter follows a branching plot line which offers pre-determined scenarios with courses of interaction, and focuses on the appeal of the title character Kudryavka, also known as "Kud" ( クド, Kudo) for short.

The story follows the lives of high school students Riki Naoe and his close friend Kudryavka Noumi as they start to see more of each other in a romantic relationship. Key released a version of Kud Wafter without the erotic content, and the game was ported to the PlayStation Portable and PlayStation Vita. Kud Wafter is Key's eighth game, along with other titles such as Kanon, Air, and Clannad. Kud Wafter ( クドわふたー, Kudo Wafutā) is a Japanese adult visual novel developed by Key, released on June 25, 2010, for Windows.
