Born in Chiba Prefecture, she attended high school in Otaki before gaining a degree from the Japan Women's College of Physical Education.

Her international debut came at the 2005 Asian Athletics Championships and she finished just two hundredths behind bronze medallist and fellow Japanese Kumiko Imura.

[12] Ishino retained her corporate title in 2010, but was third at the Japanese Championships and Games and did not compete internationally.

[13] For the first since 2004, Ishino failed to reach the top three at the 2011 Japan Championships in Athletics and also had to settle for third at the corporate meet and the Japanese Games.

Her form continued to diminish in 2012 and 2013, as she failed even to reach the national finals in the 100 m hurdles.