Hi, @Sayaka_1 .
Thank you for reaching out!
You can definitely use your personal bank account as the account your payouts get deposited into. A great feature Shopify just recently added is Shopify Balance. Shopify Balance is a set of linked financial products from Shopify designed for merchants, including a money management account, spending card, and cashback rewards. Shopify Balance is an account that Shopify Payments payouts are deposited into (within 1 business day) and can be used to make purchases both within (themes, apps, Experts Marketplace) and outside of Shopify (inventory etc.). I recommended looking into Shopify Balance if you would prefer to have your business and personal accounts separate.
Please let me know if you have any further questions! I would love to learn more about your business. What type of products do you sell?
Talk soon,