Recently, the world economy is deteriorating at a quicker pace due to the pandemic and the ongoing Russia-Ukraine war. Its aftermath is being felt in Korea as well. Startups in Korea has faced another "Death Valley". That is, they're now teetering on the brink of viability. Though companies which are able to create competitiveness can survive, those who fail to do so have no choice but to go broke. Actually, so many startups have been going bankrupt. However, for some, all this is becoming a window of opportunity! Sartups call their initial three-year period "Death Valley". Yet they have to cross another death valley caused a variety of unfavorable factors. I think they have already solutions to this. They need "inverse concepts". To that end, people in startups should read books, create new human network and expose themselves to another environment. Failure to do so could lead them to closure! Eventually, doing a business is bound to make them face a series of crises. In conclusion, the key to all this lies in their attitude!