He was the head writer of anime series such as Serial Experiments Lain (1998), The Big O (1999-2003), Digimon Tamers (2001-02), Hellsing (2001-02), and Texhnolyze (2003), as well as the television drama Ultraman Tiga (1996-97).
His films during this period adopted largely science-fiction themes, and it wasn't until watching The Exorcist and The Legend of Hell House that he began to garner an interest in horror.
[2] While working in special effects after graduating college, Konaka was offered his first scriptwriting job on Teruyoshi Ishii's 1988 Japanese horror film Jaganrei [ja].
[3] The story-line of the early episodes of Digimon Tamers was based on one of the original scripts by Chiaki and Kazuya Konaka for Gamera: Guardian of the Universe in 1995 before the final draft by Kazunori Itō.
[10] In response, Konaka posted a statement in English addressed to his overseas fans on August 8, 2021, to explain his circumstances[11] and to apologize for triggering a divide among the fandom.