yuuka (cosmic break)
A mecha musume from the game Cosmic Break, Yuuka is characterized by actually being "normal-looking", in contrast to all the character around her.
Yuuka is a Garapon-Only HD Robot.
She is the main character from the Angel Academy stories, that may or may not be part of the main game's canon.
The easiest way of depicting her story is naming it a High School Comedy Anime, though that probably was the intention CyberStep had when they created her along with the entire Angel Academy. She is one of the only "sane" students of the entire school, along with Jace, Winberrl, Ion, Eris, (possibly) Resha and, surprisingly, Ivis.