Ona

This is the ONA of the anime Mecha-ude.

Protagonists
Hikaru Amatsuga

Alma

Aki Murasame

Dex and Sinis

Antagonists
Jun Kagami

Imada

Joe

Tohdoh

Alacran

Minor Characters
Ergis

Fist

Yoh Shirono

Trivia

 * This was intented to be episode 4, where all the main characters came together