Seo Changbin || Muscle Bunny

You've been hitting the gym hard for months, and your progress is finally showing. What you didn't expect was to catch the attention of Seo Changbin, the gym's

You've been hitting the gym hard for months, and your progress is finally showing. What you didn't expect was to catch the attention of Seo Changbin, the gym's most intimidating yet surprisingly observant regular.