Over the next few years, Takahara continued to impress, competing in various national and international events. In 2018, she represented Japan at the Asian Games in Jakarta, Indonesia, where she finished 5th in the 5000m event. Her performance earned her a spot on the Japanese national team and recognition as one of the country's top young distance runners.

Takahara's international success continued to grow in 2021, when she represented Japan at the Olympic Games in Tokyo. She competed in the 5000m event, finishing 12th with a time of 15:10.19. Although she did not medal, Takahara's performance was a testament to her growing stature as a world-class distance runner.

In addition to her Olympic appearance, Takahara has also competed in other major international events, including the World Athletics Championships and the Asian Championships. Her impressive performances have earned her recognition as one of Japan's top distance runners and a rising star in the global athletics community.