X is the twenty-fourth letter in the modern Latin alphabet. Its name in English is spelled ex (pronounced /ɛks/), plural exes (pronounced /ɛksəz/).

Source: Wikipedia

X (TV)
Alternative title:
X−エックス− (Japanese)
Икс (Russian)
Genres: adventure, drama, fantasy, romance, supernatural
Themes: Apocalypse, Destiny, Power to Change
Age rating: Mature (May contain sex, drugs, and extreme graphic violence)
Plot Summary: It's the year of destiny and 15 year old Kamui Shiro, a powerful psychic, has returned to Toyko after a 6 year absence. He returns to protect his childhood friends, Fuuma, and Fuuma's younger sister Kotori. But destiny and fate are haunting Kamui and pulling in himself and his loved ones. It is his destiny to decide the fate of the world and mankind, no matter if he wants the role or not.

Source: Anime News Network