The Haunted House

The Haunted House, also known as, is a Korean media franchise created produced by Tooniverse and CJ ENM. It became popular through Korea, spawning many toys, mobile games, films and musicals.

The anime premiered through the following order.
 * The Haunted House: Room 444 (신비아파트 444호), a 4-part series in December 31, 2014.
 * The Haunted House: Secret of the Ghost Balls (신비아파트: 고스트볼의 비밀), the 1st season from July 2016 to January 2017 for 24 episodes.
 * The Haunted House: Birth of the Ghost Ball X (신비아파트: 고스트볼 X의 탄생), the 2nd season split into 2 cours, the first from November 2017 to March 2018 and the second from October 2018 to January 2019.
 * The Haunted House: Ghost Ball Double X (신비아파트: 고스트볼 더블 X), the 3rd season split into 2 cours, the first from March to June 2020 and the second from October 2020 to January 2021.
 * The Haunted House: Ghost Ball Z (신비아파트: 고스트볼Z), the 4th season from September 2021.