《School Days》（スクールデイズ）是2005年4月28日由Overflow发售的十八禁游戏。2010年10月8日发售重制版《SCHOOL DAYS HQ》，添加加剧本、分辨率和背景改为3D呈现。后来的发售《Summer Days》、《Cross Days》、《Island Days》为外传性质故事。电视动画版在日本于2007年7月3日开始放映。2008年1月17日由GungHo Works代理发售PlayStation 2版《School Days L×H》（Love and Hate），初回限定版同捆OVA和RADIO出张版CD。2007年8月29日，桂言叶作为代表性人物，被收录于出版的《黑化角色大全》中。

School Days(スクールデイズ,Sukūru Deizu) is a Japanese visual novel developed by 0verflow, released on April 28, 2005 for Windows as an adult game. It was later ported as a DVD game and for the PlayStation 2 (PS2) and PlayStation Portable (PSP). The story, a dramatic slice-of-life, follows Makoto Ito, a high school student who becomes the ambivalent love-interest of several girls during his second term, and the effects this has on himself and his relationships with other characters. Though the game requires little interaction from users, School Days engages the player through a plot that they are given opportunities to change the course of during play. The game concludes with an ending specific to the outcome of the story, some of which became notorious for their graphic violence.