Kud Wafter

is a Japanese adult visual novel developed by Key released on June 25, 2010 for Windows PCs."Kud Wafter" is Key's eighth game, along with other titles such as "Kanon", "Air", and "Clannad". Key will release a version of "Kud Wafter" without the erotic content, and the game will be ported to the PlayStation Portable.
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.