Jin Seo-yeon reveals why she sleeps in a Sportswear On October 20, KBS 2TV 'Stars' Top Recipe at Fun-Staurant', Jin Seo-yeon appeared and released his own body management Rutin. Earlier, Jin Seo-yeon said, "I eat a lot of food because I have a lot of food. Then I get fat, so I study delicious food without being steamed." On the morning of Jin Seo-yeon's release, Rutin was different. Jin Seo-yeon, who woke up wearing a unique Nightwear with his back exposed, stretched on the bed, and the 'Stars' Top Recipe at Fun-Staurant' cast members saw Jin Seo-yeon's Nightwear and said, "Why is your back so cool?"