[1][2] She also plays for Japan women's national volleyball team as setter.
After graduating from Nagasaki Girls' High-school, Kotō joined the PFU BlueCats which participated in the V.Challenge League in 2001.
Kotō served as a captain from 2006–7 season and won the 2008–9 V.Challenge League, where was named the Most Valuable Player.
Kotō served as a captain from 2012–3 season and won V.Premier League, so she was named for the Best6 award.
This biographical article relating to volleyball in Japan is a stub.