Kirameki☆Project
Genres: Comedy, Sci-Fi, Ecchi
Type: OVA, Episodes: 5
Aired: Jun 24, 2005 to Feb 24, 2006
Studio: Studio Fantasia
Source: Original
Rating: R+ - Mild Nudity
Synopsis:
In a world where giant rude robots are common and used to fight wars appears a giant Handcrafted robot that defeats the major armies of the world. Meanwhile in a kingdom where three sisters reign in peace and harmony there is a secret that they keep from the rest of the world until they must use a Doll-looking robot to protect their nation, even when her creator refuses to put her friend in danger.

(Source: ANN)