Lee Seo-jin Finds Secondhand Trading Fun on ‘My Grumpy Secretary’ 조선일보Kim Won-hoon’s Blunt Humor Sparks Laughter on ‘My Grumpy Secretary’ 조선일보Lee Seo-jin tries first used-item sale and gets hooked ChosunbizLee Seo-jin Admits Relationships Under Two Years 조선일보Lee Seo-jin admits relationships under 2 years, Kim Won-hoon jokes ‘anti-long-term dating icon’ – CHOSUNBIZ Chosunbiz