Nerawareta Megami Tenshi Angeltia: Mamotta Ningen-tachi ni Uragirarete
Japanese title: 狙われた女神天使エンゼルティアー ~守った人間達に裏切られて~
Type: OVA
Episodes: 4
Source: Visual novel
Genres: Hentai
Studios: PoRO
Duration: 23 min per ep
Rating: Rx - Hentai

Based on the adult game by Syrup: Many Milk.