The Bookstore

Jung Woo, who works at a bookstore, has a crush on Seo Yeon, a senior he works with. He wants to confess to his senior, but seeing the senior's confusion after meeting the last guest makes it difficult for him to say anything. Jung Woo wants to know what their relationship is and why his senior is acting like that.
(Source: Korean = kqff.co.kr || Translation = MDL)