At least 60 percent of Japanese population become Roman Catholics. The imperial family will be pressured to dethrone themselves, making Japan a truly progressive, democratic nation since there should be no king but Christ. Will remain neutrally peaceful instead of joining the Axis and invading Asian countries. No inhumane war crimes. Thus Hiroshima and Nagasaki will remain safe and thriving. The problem of declining birth rates due to toxic work culture and deprived family values will be non-existent or solved.