This case mainly focuses on the external and internal environment of Lyfen after 2015. According to the assumption in 2014, Lyfen's online sales were supposed to double, but Lyfen was gradually falling behind in the competition. According to the financial report for 2020, Lyfen's net profit was negative for the first time in 2020, with a loss of around 65 million yuan. How will Lyfen take advantage of this booming snack food market? Will Lyfen succeed in such a cutthroat business, Besieged and chased by rising stars?