Mita Kotaro is a street musician and an acquaintance of BAD DOGS. He respects Ken, but initially thought that his daughter An doesn't have talent and is just using her father's popularity.

In Vivid BAD SQUAD's Main Story
He sabotaged Vivids' first live performance and created an "opportunity" for Vivids and BAD DOGS to confront each other. However, he later saw Vivids' true skill and apologized for ruining their first event.