Chi-Ho ( Yu Hae-Jin) works for a confectionary company as a researcher. He is gifted with a 100% palate, but has zero sense for anything happening outside of his immediate circle. His interest is focused solely on sweets. The people around him are his older brother Seok-Ho (Cha In-Pyo), who is childish and shameless, and his boss Byeong-Hoon (Jin Sun-Kyu). His boss is the CEO of the confectionary company and he is narcissistic in behavior. Chi-Ho's days go by peacefully, but things suddenly change when Il-Young (Kim Hee-Seon) appears in front of him. She makes Chi-Ho's heart flutter.