Koreha Zombie Desuka? of the Dead - Episode 00

"Yes, Thank You for This Encore" (はい、アンコールありがとうございます, Hai, Ankōru Arigatō Gozaimasu?) is the zeroth episode of the Koreha Zombie Desuka? of the Dead anime. This episode was released as an OVA. It was aired on April 25, 2012.

Summary
Carrying on from the end of the previous season, the gang continue to enjoy the swimming pool. As Ayumu tries to keep Haruna under control as she searches for Nessie, he finds himself distracted by the other girls and ends up getting punished by Sera. In the end, he learns that Haruna just wanted to play with Eucliwood. Later, the gang decide to throw a surprise party for Eucliwood's birthday. However, as Ayumu and Eucliwood return that day, they find the house turned into a demonic void by Haruna. After surviving Haruna's surprise, Ayumu and Eu greets Orito and Yuki. As everyone gives Eu presents, they ask her how old she is. Eu replies by casting a sleeping spell on them.