This sound is from Anime School Days Soundboard

School Days is a Japanese visual novel developed by 0verflow, released on April 2005, for Windows as an adult game. The original game was officially discontinued on April 2011. School Days was remastered as School Days HQ on October 2010, and localized in North America on June 2012.
See also: Dog Days (Japanese TV series), List of School Days episodes, Wasteful Days of High School Girls, Anime, K (TV series), and Rainbow Days.