Seraph of the End - Season 1 Episode 4 -

Mikaela, who was thought to be dead, was actually turned into a vampire by Krul and is working with them. Meanwhile, Yuichiro starts his first day at the Extermination Unit's training school, but soon gets into a fight with one of his classmates...▽ Kyuuketsuki mikaera [Japan: original Romaji title]▽ Vampire Mikaela [Japan: literal English translation]