She joined the Royal Ballet in London in 2011, and was named a principal dancer in 2021.

[9] Lead roles she danced include Kitri in Don Quixote, Sugar Plum Fairy in The Nutcracker and Aurora in The Sleeping Beauty, as well as in MacMillan's Concerto and Balanchine's Symphony in C.[2] In January 2020, Kaneko was supposed to dance in the cinema relay of The Sleeping Beauty as the Lilac Fairy, but danced the lead role Aurora in order to replace an injured Lauren Cuthbertson.

[10][11] Later that year, her debut as Odette/Odile in Swan Lake was delayed due to the COVID-19 pandemic.

[14] She also originated the role of Satan in McGregor's The Dante Project,[15] and in Abraham's The Weathering.

[16] In March 2022, Kaneko appeared in a gala benefitting the Disasters Emergency Committee (DEC) Ukraine Humanitarian Appeal at the London Coliseum, performing the white swan pas de deux from Swan Lake with William Bracewell.