[3] Making her first international appearance, Murakami won the silver medal in the spring girls category at the Mladost Trophy in the 2004–05 season.

Murakami placed 7th in the short program and won the free skating to take the bronze medal,[12][13] which earned her an invitation to compete at the 2008–09 senior national championships.

[16] The win qualified her for the 2009–10 Japan Championship, where she placed fifth overall, behind Mao Asada, Akiko Suzuki, Yukari Nakano, and Miki Ando.

She was assigned to compete at the 2010 World Junior Championships, where she won the title after placing second in the short program and first in the free skating.

At the 2010 NHK Trophy, she placed second in the short program behind Carolina Kostner, and fifth in the free skating to capture the bronze medal.

In the 2011–12 Grand Prix season, Murakami finished sixth overall at the 2011 Cup of China and fourth at the 2011 Trophée Éric Bompard.

Murakami started her season with bronze at the 2012 Skate Canada International and finished 4th at her next event, the 2012 Cup of Russia.

She then won a medal on the Grand Prix series, taking bronze at the 2014 Cup of China after placing third in both segments.

After twisting her ankle during an ice show in late April 2015, she cancelled the rest of her post-season skating appearances.

In France, the second day of competition was cancelled due to the Paris attacks and the short program standings were deemed the final results.

Murakami performed an exhibition program as a special guest at the 2017 World Team Trophy and announced her retirement.

Following her win at the 2010 World Junior Championships, Murakami has taken part in many local events including the first pitch ceremony of Chunichi Dragons, a professional baseball team based in Nagoya.