What's Wrong with Secretary Kim? (Korean: 김비서가 왜 그럴까; RR: Kimbiseoga wae geureolkka) is a 2018 South Korean television series starring Park Seo-joon and Park Min-young. It is based on the novel of the same title by Jung Kyung-yoon which was first published in 2013, which was then serialized into a comic in 2015 via Kakao Page. The series aired on tvN from June 6 to July 26, 2018, on Wednesdays and Thursdays for 16 episodes. It was also aired and dubbed in Filipino on 2019. Hardworking Cow on the other hand had multiple appearances in the series, highlighted as Seo-Joon's gift to Min Young which also was a representation of Secretary Kim's character, her hardwork and passion for her job. Our Hardworking Cow arrives in different versions, with Studio Dragon etiquette, Made in China etiquette and one With No Factory Tag STUDIO DRAGON MADE This version comes with no Bag. The materials for its production include high quality materials such as: 1. Creamy Brown velvet fabric for its body 2. White velvet fabric for its face and tummy 3. Satin thread for embroidered round eyes 4. Soft and smooth Gray fabric for the costume 5. Fiber CHINA MADE This version comes with bags in three (3) different colors, Candy Pink, Sky Blue and Lemonade Yellow. The materials for its production include high quality materials such as: 1. Creamy Brown velvet fabric for its body 2. White velvet fabric for its face and tummy 3. Satin thread for embroidered round eyes 4. Soft and smooth Gray fabric for the costume 5. Candy Pink, or Sky Blue and or Lemonade Yellow rough and thick fiber for the bags 6. Fiber