Career
Mainly a left-sided defender, she plays for INAC Kobe Leonessa. Sameshima played youth football for Kawachi South Carolina Juvenile between 1995 and 2002 and Tokiwagi Gakuen High School from 2003 until 2005. In 2006 she joined TEPCO Mareeze, the club owned by the Tokyo Electric Power Company.
During her time at Mareeze she lived in the J-Village Sports complex in Hirono near Fukushima, and like other players, she worked at the TEPCO-run Fukushima Daiichi Nuclear Power Plant to earn a living whilst playing for the club
Following the 2011 Tōhoku earthquake and tsunami and subsequent nuclear disaster, during which the team were in a training camp in the south of the country, the club pulled out of the L. League for the remainder of the season. Sameshima then began training with the Boston Breakers in March 2011, before signing for the club permanently, the first former Mareeze player to sign for another club
She made her debut for the Breakers against Sky Blue on 12 June as a second-half substitute for Alex Scott, becoming the first Japanese international to play for the club On 19 September 2011, Sameshima joined French club Montpellier, joining compatriot Rumi Utsugi at the club
She returned to Japan to play for Vegalta Sendai in 2012, before joining Houston Dash in January 2014.
However, due to injuries she failed to make an appearance, and rejoined Vegalta Sendai in July 2014. She subsequently signed for INAC Kobe Leonessa for the 2015 season. In 2011 she was part of the Japan squad for the World Cup, playing in every match for the World Cup Champion Japanese team