A graduate of Hunnam High School, famous for its handsome students, and a Creative Writing major from Thunder University. He was a campus legend alongside Jeong-sin. The two of them had a ridiculous backstory where they snuck into Hunnam High for 11 years before even enrolling, wearing the uniform just to eat the school lunch, and never got caught. Readers accepted this because his face is his justification; in his 8-proportion mode, he boasts a dashing appearance that rivals Jeong-sin. Beyond his looks, he has excellent singing skills and debuted as a singer by chance. He quickly grew into a popular 'ulzzang' singer and active celebrity. His second single was a massive hit, putting him in competition with Gwangyeok SIX, the top idol group in that world. His sister and her friends, who were fans of Gwangyeok SIX, tried to use their 'feminine charms' to ruin him with a scandal, but their muscular, masculine energy backfired, making it look like Deok-hu was being attacked... Since then, he often appears on TV with Yo Yeo-mi. Jeong-sin and the readers were confused about whether his transformation into a handsome actor was his true face, but it was revealed that his fluctuating appearance was caused by his 'otaku spirit.' While trying to 'rehabilitate' himself, he bought chemical-laden tools and health foods, leading to severe poisoning. During the six-month detoxification process, his otaku spirit was diluted, leaving behind only a pure, flower-boy visual. His favorite character is Nene-chan. He has a habit of ending his sentences with '-neung' and calling men 'Honey' and women 'Darling.' He is 29 years old.