Due to COVID-19, delivery services are becoming more raipid. Because of this, in Korea, Coupang, MarketKurly, Naver and SSG, to name a few, are beginning to play a "Chicken Game". In particular, who is faster determines the victor. Two years ago, Coupang statrted to do "Early-morning delivery" Now, every competitors are following suit. But, now, the same-day and early morning delivery are being done by other competitors. But, because of this, many delivery workers are driven to death. For fast delivery, they come to violate traffic regulations. And they tend to deliver products in a hurry to save time. Paradoxically, for consumers, the same-day delivery is good, but it is causing delivery workers to be in danger. Last year, Coupang was listed on the Nasdaq. The evaluated value of the firm was 100 trillion. Market Kurly received 2000 billion from investors. In conclusion, I wanna tell you, "For whom are you going to ring a bell?"