Hello @keisuke-matsumot,
Happy Wednesday! Thanks for visiting the QuickBooks Community. I can understand how customizing reports/statements is important. In this instance, the Statement of Cash Flow is set up according to the International Accounting Standard and there is not an option to reclassify accounts. I would recommend checking with your accountant to see if there is another option for your business.
Let me know if you have any other questions about reporting, customizing, or anything else. I’d be delighted to help.