For several months, Japan has been moving in a more nationalist and conservative direction. The shift has been fuelled by economic challenges at home and growing regional tensions with China. The country's new ultra-conservative prime minister, Sanae Takaichi, is expected to accelerate this agenda, with plans to tighten immigration policies and strengthen Japan's defence posture. A report by Adam Hancock, Alexis Bregere and Mélodie Sforza.