Chi-ho(YOO Hae-jin) was born with his taste buds at 100% but with zero sense of reality. But when the nonstop optimism of Il-young (KIM Hee-seon) starts to invade his world of chips,Chi-ho begins to discover new flavors he never knew existed. Further adding flavor to his life is his shameless and reckless older brother Suk-ho(CHA In-pyo), the egotistical snacks company president Byung-hoon (JIN Sun-kyu), and the always unpredictable and overly emotional Eun-sook (HAN Sun-hwa), who transform what used to be his hamster wheel of life into a much more colorful place.