She is the youngest winner in the history of the LPGA of Japan Tour when she won the KKT Cup Vantelin Ladies Open as an amateur on 20 April 2014 at age 15.

She began to play golf at the age of six under her grandfather's influence.

Katsu has eight wins on the LPGA of Japan Tour, including one as an amateur.

Katsu earned her LPGA Tour card for the 2023 season via Q-School.

[4] a Katsu won the 2014 KKT Cup Vantelin Ladies Open as an amateur.