is a Japanese adult visual novel developed by Key, released on June 25, 2010, for Windows. Kud Wafter is Key's eighth game, along with other titles such as Kanon, Air, and Clannad. Key released a version of Kud Wafter without the erotic content, and the game was ported to the PlayStation Portable and PlayStation Vita. 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. 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 for short. 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. 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. The game ranked as the best-selling PC game sold in Japan for the time of its release. A manga adaptation illustrated by Bakutendō was serialized in ASCII Media Works' Dengeki G's Magazine. A 51-minute theatrical anime adaptation by J.C.Staff premiered on July 16, 2021. Gameplay Kud Wafter is a romance visual novel in which the player assumes the role of Riki Naoe. Much of its gameplay is spent on reading the story's narrative and dialogue. Kud Wafter follows a branching plot line with multiple endings; depending on the decisions that the player makes during the game, the plot will progress in a specific direction. Throughout gameplay, the player is given multiple options to choose from, and text progression pauses at these points until a choice is made. To view all plot lines in their entirety, the player will have to replay the game multiple times and make different choices to bring the plot in an alternate direction. Throughout gameplay, there are scenes with sexual CGs depicting Riki and Kudryavka having sex. Key released a version of Kud Wafter without the erotic content. Plot and characters Kud Wafter'''s story revolves around , the male protagonist from Little Busters! and Little Busters! Ecstasy, and , one of the main heroines of the same games and the title character of Kud Wafter. Kudryavka has