Project A-Ko 4: Final
English name: Project A-ko: Love & Robots
Genres: Action, Comedy, Sci-Fi
Type: OVA, Episodes: 1
Aired: Oct 7, 1989
Studio: Studio Fantasia
Source: Original
Rating: R+ - Mild Nudity
Synopsis:
In Iraq, a group of archaeologists discover ancient relics that prophecize the coming of a superior race and the end of all civilization. Meanwhile, back in Graviton City, as A-Ko and B-Ko's rivalry over Kei intensifies, Mr. Daitokuji sets up an arranged marriage between Miss Ayumi and Kei. Furious over the engagement, both A-Ko and B-Ko do whatever it takes to prevent the wedding from going through. Little do they know that another alien fleet is on its way towards Earth. 

(Source: ANN)