This groundbreaking adult animation series has revolutionized the genre with its intense scenes of violence, perversion, and lust, featuring hardcore sex and unique sexual fetishes. The series is divided into three distinct anime titles, each named after one of the sadistic brothers they revolve around: Isaku, Shisaku, and Kisaku. Here's how the series unfolds (note that games and recap episodes won't be included): (You are here) Isaku (遺作) / 3 Episodes + Special Recap Episode / Released from November 28, 1997, to May 29, 1998 - Shusaku (臭作) / 3 Episodes / Released from April 2, 1999, to November 5, 1999 - Shusaku Replay (臭作 ～Replay～) / 4 Episodes / Released from July 28, 2000, to January 26, 2001 - Isaku Respect (遺作 ～Respect～) / 3 Episodes / Released from February 23, 2001, to September 21, 2001 - Kisaku (鬼作) / 6 Episodes / Released from January 25, 2002, to April 11, 2003 - Shusaku Liberty (臭作 ～Ｌｉｂｅｒｔｙ～) / 2 Episodes / Released from January 24, 2003, to April 25, 2003 - Kisaku ULTIMATE / 1 Episode (Special Recap) / Released on May 14, 2004 - Kisaku Spirit (鬼作 魂) / 3 Episodes / Released from May 28, 2004, to July 22, 2005 - Shusaku Se-X File (臭作 SE-XFILE) / 1 Episode (Special Recap) / Released on September 17, 2004 - Kisaku Core Mix (鬼作 THE ANIMATION コアMIX) / 2 Episodes / Released from March 28, 2014, to April 25, 2014 - Shusaku Core Mix (臭作 THE ANIMATION コアMIX) / 2 Episodes / Released from September 29, 2014, to September 26, 2014 - Isaku Core Mix (遺作 THE ANIMATION コアMIX) / 2 Episodes / Released from November 28, 2014, to January 30, 2015 It's the last day of school before the summer break, and Kenta is bracing himself for another dull summer. But then, he receives a mysterious note that changes everything. Following its instructions after school, he ventures into the old, abandoned school building. To his surprise, he finds Jinpachi, Miyuki, Rika, Kotomi, Akemi, Ms. Kumi, Munemitsu, and Mio there, all having received the same cryptic message. Initially, everyone thinks it's just a prank and starts bickering about who might be behind it. But their laughter turns to terror when they hear the entrance being boarded up. As the nightmare unfolds, the girls start disappearing one by one. Rika is the first to vanish, followed by a horrific video showing her being assaulted by an unknown attacker. Brace yourself for a twisted tale filled with shocking and graphic hardcore sex scenes!