Otaku is a smart corgi boy that enjoys his schoolwork and studying. He works hard to keep his grades up. In fact, Otaku attends a university now instead of high school. Because of his looks and smarts, he gets bullied a lot. Little did he know beforehand, when he gets really angered, he will turn into a giant werecorgi and go on a murder spree. He only kills the people who have bullied him.

Otaku will also defend people who he is close to in his werecorgi form. Celica is one of those people. Celica has been one of the only people who have been nice to poor Otaku. He can be a bit hard to get along with sometimes as he is very standoffish. This stems from how much he's been bullied, but Celica doesn't seem to mind all that much. In fact, Celica actually has a major crush on him (more of that on her profile). Otaku likes her too but he's very very shy about it.

This corgi can sometimes be seen working in a lab with his partner Enigma. However, Enigma doesn't seem to be too fond of the corgi's attempts to help him.