Traditional Culture Encyclopedia - Tourist attractions - My friends and I want to travel to Korea. Without proof of assets, what can be used instead?

My friends and I want to travel to Korea. Without proof of assets, what can be used instead?

I just went to Korea for a free trip this year without any proof of assets. I entrust Ctrip to help me with my visa. In addition to filling out the form given by Ctrip,

The information I provide is personal passport, copy of ID card, employment certificate issued by the company, and credit card statement. You can go to Ctrip for details.