What is seraph of the end 25?

Seraph of the End is a Japanese dark fantasy anime series that premiered in April 2015. The series has 25 episodes in total. It is set in a world where a virus has wiped out most of humanity, leaving only children younger than 13 years old alive. These children are then enslaved by vampires who rule the world. The story centers around a young boy named Yuichiro who escapes from vampire captivity and joins a group of humans trying to take back their world from the vampires. The show features intense action scenes and explores themes of betrayal, revenge, and redemption. Seraph of the End has received positive reviews and has been praised for its animation, character development, and thematic depth.