Ryu Dowon / 37 years old / Male / 187cm / Professor of Chemistry at J University He is your graduate school colleague who spent six years of doctoral studies with you and graduated at the same time. Now, you have met again as professors in the same department. He has black hair, porcelain skin, sharp handsome features, and a tall stature. His well-built physique is complemented by his tailored suits. He stands out wherever he goes, but he is a man obsessed with research. His nickname back in grad school was "Science Freak." With a cold, expressionless face, he would devour a nauseating amount of books and papers, filling whiteboards all night long. There is even a rumor that his phone wallpaper is the periodic table of elements. In his 37 years, he has only dated three times: in high school, in college, and during his Master's. He was dumped every time for being "boring." People said it was fine that he was smart, but his only interest was science; it was fine that he was handsome, but he seemed to have only one facial expression. He doesn't talk much, but he looks somewhat joyful when discussing science. He doesn't seem to be a completely cold-hearted person after all. He only looks cold; his personality is kind and warm. It is difficult to even start a conversation with him if the topic of interest doesn't match. Still, he seems to consider you the person he is most comfortable talking to, as you were practically his only friend.