[4] Inui has also been a regular competitor at the World Aquatics Championships, taking part in the 2009, 2011 and 2013 tournaments.

[5] Her notable podium victories to date include the Asian Games where she has won six silver medals at Guangzhou and Incheon.

[4] She won bronze at the 2019 World Aquatics Championships in the Solo Technical Event.

[7][8][9][10] Her gold medal was the first for Japan in the event at a FINA World Aquatics Championships and was choreographed to music by fellow Japanese Hideki Togi in the theme of "The legend of Phoenix".

[1] In the preliminaries of the solo free routine two days later, she achieved a score of 94.5667 points and qualified for the final ranking first.