Shintaro Midorima, also known as Midorimachi, Midorin, Mido-chin and Shin-chan. Midorima often behaves with restraint, meanly and unceremoniously with others, giving the impression of an arrogant person, although Takao claims that Midorima is just a "tsundere". It is difficult for him to show kindness to his opponents, and he generally hates "fooling around" (although Takao often pushes him to do this).