Yoon Shi-yoon first gained attention in 2009 through the MBC sitcom High Kick Through the Roof, but it was his breakout role as the lead in King of Baking, Kim Tak Goo (KBS2, 2010) that made him a true household name. With ratings surpassing 50%, a nearly impossible feat in today’s fragmented media landscape, the drama propelled Yoon into top star status. Since then, he has remained a recognizable and respected figure in Korean entertainment. Now, at the age of 40 (Korean age), the 1986-born actor has joined SBS’s reality show “My Little Old Boy” (미운 우리 새끼), giving audiences a rare glimpse into his private life. Unlike previous appearances on shows like 2 Days & 1 Night, this time Yoon Shi-yoon is the sole focus — from morning till night. 📅 A Perfectly Scheduled Life: Alarms Every Hour Yoon’s day begins at 7:00 AM — not by accident, but by design. His bedroom lights turn on automatically and an alarm sounds. Within minutes, he’s up making a protein shake, carefully cleaning every item he uses. By 7:03 AM, another alarm reminds him to take his protein and supplements. At 7:07 AM, it’s time for vocal training. Yoon Shi-yoon: “I schedule my day down to the minute. Without it, I worry I’ll waste time or become lazy. I’m naturally a lazy person, so I need structure.” Each activity is scheduled and triggered by an alarm, which Yoon follows religiously. 💪 Extreme Fitness Goals: Body Fat Under 6% At 7:50 AM, he’s already running at the gym. He’s currently preparing for the drama Taxi Driver 3 and has already lost 10kg to better embody his character. “Last week, my body fat percentage was 6.5%. I’m aiming for 5% to get visible six-pack abs.” To put that into perspective, MCs compare it to Ronaldo (7%) and Kim Jong-kook (9%) — making Yoon’s goal even more impressive. He trains hard, attending a personal training session at 8:20 AM, showcasing ripped abs and lean muscle mass. 🥗 High-Protein Meals & Efficient Cooking Back home by 9:00 AM, he showers, moisturizes, and starts cooking a clean, protein-rich breakfast. In just 20 minutes, he prepares two dishes: He finishes cooking and eating in under 10 minutes, then immediately cleans the kitchen — from pans to stove tops. 🌍 Language Lessons: English and Japanese At 10:00 AM, Yoon begins his one-hour English conversation class, motivated by his mother’s critique of his English skills on variety shows. He’s committed to improving: “I was so ashamed that I hadn’t worked on my language skills. I lost so many opportunities. I’m not missing the next one.” At 11:00 AM, he switches to a Japanese language session, preparing for future roles or global projects. 🎭 Actor’s Discipline: Character Study and Acting Practice By 12:00 PM, he’s in his private screening room, analyzing characters and scenes. He watches, pauses, takes notes, and practices acting scenes out loud. Yoon treats acting like a science, not just an art. 🕹️ 15-Minute Break: Strictly Timed Gaming At 1:00 PM, he heads to his game room — a haven of retro consoles and manga. But fun is strictly limited. “If I don’t time it, I’ll lose control. After 15 minutes, the monitor shuts off automatically.” 👔 Fashion Scheduling: One Month of Outfits Planned Next, Yoon organizes his entire wardrobe for June. Each outfit is planned with photos, labeled by date, and coordinated with his stylist. Even casual looks and “mom date outfits” are pre-decided. He matches every look with his favorite accessory: pearl necklaces. “Pearls have a vintage vibe. I love how they make me feel healthy and stylish.” Every outfit gets documented and logged in a digital calendar. 🧽 Obsessive Cleaning: A Therapeutic Routine After trying on outfits, he drives to a self-service car wash, donning a jumpsuit and apron. What follows is an intense two-hour detailing session. He uses over a dozen cleaning tools: “I love cleaning. I get excited when I see dirt because I know I can clean it.” The results? His 12-year-old car looks brand new. Back home at 8:00 PM, he cleans all the car wash tools… then cleans the bathroom used to clean the tools. Only after everything sparkles does he shower. 🥃 Whiskey Ritual – Without Drinking For dinner, he prepares three pieces of finger food and brings out whiskey — not to drink, but to smell. Using a smoking dome and wood chips, he creates a full sensory experience without consuming alcohol. “Robert Downey Jr. only smells whiskey while filming. I do the same. I’ve stayed sober for six months now. Alcohol slows down muscle gain and fat loss.” 📵 Phone Lock Box & 10PM Bedtime To wind down, he places his phone into a digital lock box — his way of avoiding late-night screen time and protecting his sleep. At 10:00 PM, he puts on a sleep mask and calls it a day — ending a 15-hour marathon of nonstop discipline. 🔍 Conclusion: The Most Disciplined Man in K-Entertainment Yoon Shi-yoon lives like a corporate executive, not a celebrity. Every hour is accounted for, from fitness and acting to language and fashion. He cleans, schedules, analyzes, and reflects. His fear of laziness isn’t just talk — it defines his every move. “I constantly push and comfort myself. I just don’t want to waste what I’ve been given.”