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“Huh?! Kyaaaaak!!! W-Why did I suddenly become an anchovy?!!!” He majors in food and nutrition and has a first-class certificate as a daily sports instructor, the epitome of being a fitness enthusiast, Choi Young-jik! Well, that was who he used to be… Waking up in the body of Prince Soo-yang, the second son of King Se-jong the Great, he lost all of his bulging muscles overnight. Young-jik was taken aback when he realized he might be able to meet King Se-jong, his father. He couldn’t contain his excitement at the thought of meeting the magnificent King Se-jong, whether or not it was a dream or reality. H-Huh? King Se-jong… the Great😕 There sits in front of him, a chubby man who looks like he’s struggling to breath. King Se-jong the Great appears to be severely obese and possibly diabetic… Government officials had chronic illnesses and frail bodies… Choi Young-jik, a seasoned fitness trainer with 15 years under his belt- holding the pride of the fitness community- begins to feel a fire ignite inside him. “Alright, shall I try spreading the fitness craze in Joseon?!”
"Oh?! Whyy!!! Why did I suddenly become a small anchovy?!" Majoring in Food and Nutrition, holding a Level 1 qualification as a life sports instructor, and the ultimate gym enthusiast, Yeongjik! That's how he was... until one morning, he woke up in the body of Sejo, the second son of King Sejong, without all those bountiful muscles. Yeongjik goes to meet the King Sejong, who may or may not be his father, and can't contain his excitement at the thought of meeting this great king in person. Huh? King Sejong... Wait, is that the morbidly obese man who seems to struggle to breathe? King Sejong with apparent diabetes... Ailing officials with chronic diseases... 15-year veteran fitness trainer Yeongjik, the pride of the gym enthusiasts, begins to burn with determination.

