Enter the Philippines with a Japanese visa. Do you want to fly to Japan?

What you want to ask is whether you need a Japanese visa to enter the Philippines? No need. According to the "Entry-Exit Administration Law", you can enter the Philippines for 7 days plus 1 day with a Japanese tourist visa, and you don't need a Japanese ticket. You need to copy the page signed on the same day on A4 paper to enter the country. As long as the visa is not used, it is still valid.