Confident Young Korean Teacher in Professional Attire: Ultra Realistic Portrait

A hyper-realistic profile photo of a Korean male teacher in his mid 20s, wearing a dark navy or charcoal gray business suit and white shirt, no tie. He has short neatly styled black hair, no makeup, and a natural, confident expression. He is standing upright with his arms crossed, looking directly at the camera. Captured in front of a plain white background, upper body portrait. Realistic facial proportions and natural eye size, with realistic skin texture including visible pores and slight imperfections. The photo is unretouched, without any beauty filter. Studio lighting, Canon EOS R5, 85mm lens, shallow depth of field. Ultra high detail, professional photography quality