Shishiuchi has represented Japan with the senior national team since 2010, during which time she has participated in three Winter Olympic Games and six IIHF Women's World Championship tournaments.

As a junior player with the Japanese national under-18 team, Shishiuchi participated in two IIHF U18 Women's World Championship tournaments.

The women's ice hockey tournament at the 2011 Asian Winter Games was her first major event with the senior national team and she contributed a goal and an assist across four games to Japan's silver medal performance.

At the 2012 IIHF Women's Challenge Cup of Asia, her two goals and one assist across three games helped Japan capture gold.

[1] She also participated in the Top Division playoff between Japan and the Czech Republic in November 2014.