This Ugly Yet Beautiful World

is an anime television series created by Shouji Saeki and Hiroyuki Yamaga. It was co-produced by the Gainax and Shaft animation studios.

The series aired on the Tokyo Broadcasting System from April 1, 2004 to June 16, 2004, totaling 12 episodes. A manga adaptation, illustrated by Ashita Morimi, was serialized in Hakusensha's Young Animal.

Plot
Takeru and Ryou are high school students who work doing deliveries for the former's uncle. One night, the two go to investigate a mysterious light in the woods only to find a young girl emerging from the light. Takeru and Ryou are attacked by an alien, which is defeated when Takeru transforms into a powerful and strange looking beast himself. The girl, whom the boys name "Hikari" (light), is taken in by Takeru when she confesses to having no memory of who she is.

Other Sources

 * This Ugly Yet Beautiful World
 * http://www.animenewsnetwork.com/encyclopedia/anime.php?id=2836
 * http://www.animenewsnetwork.com/encyclopedia/manga.php?id=6445

Other Wikis

 * w:c:KonoMinikukuMoUtsukushiiSekai had only 2 pages, merged into English title by semanticdrifter on 12 June 2013
 * w:c:AnimeBaths:This Ugly Yet Beautiful World