Saving 80,000 Gold in Another World for My Retirement

TOTAL FILE SIZE
FOR KINDLE: 730 MB
FOR KOBO AND MOBILE: 1.3 GB

Synopsis:
After a mysterious accident, 18-year-old Mitsuha Yamano gains the power to travel freely between Earth and a medieval fantasy world. Realizing the danger of being left with no safety net in either world, she comes up with a bold retirement plan: save up 80,000 gold coins. Using knowledge from Earth and a clever business sense, Mitsuha trades modern goods in the fantasy realm, opening up a path to financial independence in both worlds. This isekai adventure blends humor, strategy, and entrepreneurship in a lighthearted yet savvy journey toward early retirement.