0verflow
 Overflow (オーバーフロー Ōbāfurō) (stylized 0verflow) is a Japanese video game division of Stack Ltd. specializing in the production of mature interactive fiction. The Overflow label is known for its game franchise School Days. The company headquarters are located in the Sugishō Building (杉商ビル Sugishō Biru) in Kanda Chiyoda Tokyo. On February 10 2012 Overflow confirmed that Shiny Days a remake of Summer Days will be the last title produced by the brand.