Hitsuji no uta

Name: Hitsuji no uta
Genre: Animation, Drama, Short
Released: 2003
Rating: 7.5
Cast: Megumi Hayashibara, Tomokazu Seki, Satsuki Yukino, Jûrôta Kosugi, Shinichirô Miki

Kazuna's family is cursed with a disease that makes them thirst for blood. Unaware of this, Kazuna was sent to live with the Eda couple as a child. When Kazuna's teenage hormones begin, he starts to struggle with his blood lust.