I can’t open a bank account

I keep getting rejected when trying to open a bank account. I’m 20, no debt, no missed tax payments, been working at the same company for almost 2 years. What could be the reason? I didn’t even apply for a credit card, just a debit card. Don’t have anywhere to put my emergency fund and I’m kind of concerned when keeping it cash.

Applied for: Rakuten bank, Aeon bank, JP bank debit (as of now i only have the jpbank cashcard)

by Resident_Arm_1401