an Entity references as follows:
X is a 24-episode anime television series, are based on Clamp's manga with the same name. The series was produced by Madhouse and directed by Yoshiaki Kawajiri, being first announced by the manga artists group on October 18, 2000. The story takes place at the end of days, in the year 1999. The series follows Kamui Shiro, a young esper who returns home to Tokyo after a six-year absence to face his destiny as the one who will determine humanity's fate.