Yasuko was born and grew up in Hiroshima, Japan. Now she is based in Tokyo and works for a pharmaceutical company when she is not diving. She started freediving in April 2016. For the first few years, she mainly focused on the pool disciplines and joined Japan national team for the AIDA World Championships pool competition in 2018 and 2020. She has won national records 7 times until March 2022. In 2019, she started depth training and participated in World Championship in CNF in 2021.
Now she aims to enhance both depth and pool disciplines.
3 x national record (DYN)
4 x national record(DYNB)
2019 Singapore Open Pool Competition overall 1st place
Japan Freediving Pool Championships 2019 overall 1st place
AIDA Indonesia Apnea Competition 2019 (IDAC 2019) overall 1st place
27th AIDA World Championship CNF 4th place
Freedom Depth Games 2021 AIDA CNF 1st place
2021 AIDA World Championship overall 2nd place