Highschool DxD BorN: Yomigaerarenai Pheonix
High School DxD BorN: Yomigaeranai Fushichou, High School DxD BorN OVA, High School DxD BorN Episode 13, Highschool DxD BorN OVA
Unaired anime episode (episode 13) bundled the limited edition High School D×D DX.2 Blu-ray.