Kono Minikuku mo Utsukushii Sekai
English name: This Ugly Yet Beautiful World
Genres: Comedy, Drama, Romance, Sci-Fi, Ecchi
Type: TV, Episodes: 12
Aired: Apr 2, 2004 to Jun 18, 2004
Studio: Gainax, Shaft
Source: Original
Rating: R+ - Mild Nudity
Synopsis:
High school student Takeru Takemoto works part time as a (motor)bike courier. During one of his deliveries, he saw a mysterious light passing him and fell into a forest. What he had found was a beautiful girl coming out from a glowing cocoon, calling herself "Hikari." While Takeru was quite embarrassed because of Hikari's nudity, a strange monster suddenly showed up and immediately attacked the two. Both Takeru and Hikari demonstrated the power of their other selves before Takeru had a clue of what's going on.

(Source: ANN)