Sankarea OVA

The Sankarea OVA contains two episodes bundled with volumes 6 and 7 of the manga. The first episode is a prequel that takes place at an outdoor hot-spring bath, where Chihiro and Rea first meet before the main storyline begins. The author of the manga wrote this episode. The second OVA episode occurs after the series, specifically after episode 13, when the Furuya family discovers a mysterious young girl hiding under their household's temple.