Seraph of the End - Season 1 - Eps 1: The World of Blood Legacy
An epidemic of unknown origin strikes mankind, killing all adults and rendering the youngsters at the mercy of the vampire kind. Four years later, Yūichirō Hyakuya and his friends make a daring attempt to escape from the vampires, unaware that a mortal trap awaits them.
About Seraph of the End

Title: Seraph of the End
First Air Date: 2015-04-04
Last Air Date: 2015-12-26
Status: Ended
Rating: 7.9/10 (from 414 votes)
Language: JA
Seasons: 3
Total Episodes: 24
Network: Tokyo MX
Genres: Animation, Action & Adventure, Sci-Fi & Fantasy
Production Companies: WIT STUDIO
Synopsis
After a mysterious virus wipes out ninety percent of humanity, vampires emerge from the recesses of the earth to enslave mankind, treating them like livestock. After growing tired of donating blood in exchange for protection, 12-year-old Yuichiro Hyakuya and his best friend Mikaela Hyakuya plot an escape along with the other orphans. After being the only successful runaway, Yuichiro joins the Moon Demon Company, an extermination unit of the Japanese Imperial Demon Army dedicated to killing off vampires.
Cast

Miyu Irino
Yuichiro Hyakuya (voice)

Kensho Ono
Mikaela Hyakuya (voice)

Yuichi Nakamura
Guren Ichinose (voice)

Takahiro Sakurai
Ferid Bathory (voice)

Saori Hayami
Shinoa Hiragi (voice)

Nobuhiko Okamoto
Yoichi Saotome (voice)

Kaito Ishikawa
Shiho Kimizuki (voice)

Yuka Iguchi
Mitsuba Sangu (voice)

Aoi Yuuki
Krul Tepes (voice)

Tatsuhisa Suzuki
Shin'ya Hiragi (voice)