Ma min-hwan

Ma Minhwan is a second—year student at the Yusung Higher Technical School. He is the son of the executive director of the White Lead criminal group and the closest associate of another dangerous character, Pi Han Ul. Minhwan heads the No Reason group, which engages in extortion and the sale of illegal substances. Appearance and character
Minhwan has dark blue hair, cut in a "two-tone" style (when the hair is divided into two distinct blocks), and amber-tinged eyes. He is described as very attractive in appearance, with a sense of style reminiscent of a playboy.
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At the same time, an extremely cruel and unscrupulous person is hiding behind a bright and cheerful appearance. He does not hesitate to betray those who sincerely like him, and enjoys humiliating both abusers and victims. He is one of the few antagonists who committed murder.
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Unlike most characters who rely on hand-to-hand combat, Minhwan uses his own modified pneumatic weapon, practicing the "gun-fu" style. He demonstrates significant combat prowess, fighting on equal terms with opponents such as Pak Gonep.
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Interestingly, according to his father, Minhwan has a fighting temperament but lacks innate talent. This prompted him to rely on weapons rather than physical strength. He believes that a bullet or a knife is much more effective in a fight than his own fists. Role in the plot
Minhwan plays the role of Pi Han Ul's right-hand man and is responsible for one of the axes of evil at the Yusung School. He manipulates people, for example, tricking Sivan Chong into believing in their brotherhood in order to betray him. In the plot, he repeatedly demonstrates his willingness to go to the end, including resorting to murder.